Strelok and Strelok Pro have been gone from Google Play and the Apple App Store since 2023, and the shooters who relied on them are still asking the same question in every long-range forum: what do I use now?
This page is our attempt at a straight answer. We make one of the apps below, so read with that in mind, but we'll tell you plainly when a competitor is the better pick for your use case, because a shooter who buys the wrong app doesn't come back.
In early 2023, Strelok, Strelok Pro, and Strelok+ disappeared from both major app stores and never came back.
The reason was not gun content. This gets repeated wrong in comment sections constantly, so it's worth being precise: ballistic calculators are still all over both stores, and nothing about the category was restricted. In February 2023 the U.S. State Department added Strelok's developer, Igor Borisov, to its sanctions list under Executive Order 14024. Once he was designated, Apple and Google could no longer process his payments or distribute his software, and the apps came off both stores in March 2023. It was a sanctions and payments decision about one developer, not a policy statement about shooting apps.
That distinction matters practically, not just as trivia. If the category had been banned, every app on this page would be at risk. It wasn't, and they aren't.
Where that leaves you depends on your phone:
One more thing you'll run into when you search. As of September 2026, new apps using the Strelok name are on the App Store. The most visible is "Strelok Pro-Ballistic Platform" from a company called Strelok LLC: a free download with subscription tiers, listed since April 2026, last updated 30 August 2026, with a handful of ratings. Its own listing says it is not affiliated with any earlier app or developer that used the name. We haven't tested it, so it isn't in the table below.
Whichever replacement you pick, do this before your old install dies, because the data inside it is worth more than the app at this point. Years of trued velocities don't come back on their own. Ten minutes now saves a season of re-zeroing later:
Every app in the table below will take those numbers. None of them can recover the data for you once the old install is gone.
Read any "Strelok replacement" thread, Sniper's Hide, AccurateShooter, Rokslide, the Reddit long-range subs, and the same answer comes up first, almost every time: the reticle database.
Strelok Pro drew thousands of reticles to scale. You picked your exact scope, set your magnification, and saw your drop and wind hold overlaid on the actual hash marks of the actual reticle in front of your eye. No other mainstream app matched it then, and most still don't try.
Why it matters at the range: a numeric solver tells you "come up 1.7 mil, hold 0.4 left." That's useful if you're dialing. But if you're holding over, hunting, positional stages, anything where there's no time to spin a turret, you need to know what 1.7 mil looks like in your reticle, at your magnification. On a second-focal-plane scope the subtensions change with power, and doing that conversion in your head at the moment of truth is how misses happen.
For BDC reticle owners it's even more important. The yardage numbers etched into a BDC reticle are only true for one load, at one velocity, in one atmosphere. A proper reticle view re-maps those marks to what your load actually does, which is the difference between a BDC being a tool and being a decoration.
After the reticle view, the misses people name are simpler: Strelok was cheap, one-time purchase, and fully offline. Keep those three in mind as you read the table below; the industry has drifted toward subscriptions since 2023, and not everyone has followed.
| App | Price model | Reticle database | Offline | Photo group measurement | Truing from your own drops | Platforms |
|---|---|---|---|---|---|---|
| Strelok Pro | One-time (where still sold) | Yes: thousands, its signature | Yes | No | MV from observed drops | Reported on the Samsung Galaxy Store and Huawei AppGallery in some regions; iOS gone |
| AB Quantum | Free tier + Elite subscription ($2.99/mo or $19.99/yr; AB devices unlock tiers) | No: numeric solutions | Yes | No | Yes: MV calibration + drop-scale-factor truing | iOS + Android |
| Hornady 4DOF | Free | No | Yes | No | Not a headline feature | iOS + Android |
| Shooter | $19.99 one-time | No | Yes | No | Not a headline feature | iOS + Android |
| GeoBallistics | Free + one-time Pro unlock ($14.99) | No | Yes (solver) | No | Not a headline feature | iOS + Android |
| Ballistic X | $7.99 one-time, plus a yearly Advanced Toolkit subscription ($9.99/yr) | No | Yes | Yes: mark each hole; its own BX targets set the scale automatically | No | iOS + Android |
| Zero Considerations | $9.99 one-time | 301 reticles drawn to published subtensions, with holdover overlay | Yes: no account; only weather auto-fill uses the network | Yes: it finds the holes and shows you what it found; coded markers set scale and correct camera tilt | Yes: muzzle velocity, from a photographed drop | iOS and Android: both live |
Prices and models checked August and September 2026 against each app's store listing or official site. They change; if you spot an error, email us and we'll correct the table.
Still an excellent solver attached to the deepest reticle catalog ever shipped. It has been reported available on the Samsung Galaxy Store and Huawei AppGallery in some regions; check on your own device. If it is offered to you there, buying it through the Galaxy Store is a legitimate option and we won't pretend otherwise. The trade-offs are real, though: you're on an alternative store, updates are no longer flowing through the channels most people use, and you're investing in software whose future has been uncertain since 2023. For iPhone owners it simply isn't a choice anymore.
The most respected solver in the business, full stop. Bryan Litz's custom drag curves are the reference standard, the same engine runs inside Kestrel wind meters, and serious ELR and PRS competitors trust it for a reason. The current app, AB Quantum, replaced the old one-time-purchase AB Mobile app in late 2024 with a tier model: a free Ultralite level, an Elite subscription at $2.99 a month or $19.99 a year, and free tier unlocks if you own AB-powered hardware like a Kestrel. The honest knocks: it's complex, the depth that competitors love is overhead for a hunter zeroing one rifle, and the subscription era grates on shooters who bought Strelok once and used it for a decade. No Strelok-style reticle drawing; solutions are numeric. If you shoot matches at distance, this is the serious tool and you should probably have it. It just isn't trying to be Strelok.
The best free ballistic app, and it isn't close. Hornady's 4DOF calculator models trajectory from Doppler-radar-derived drag coefficients rather than a ballistic coefficient, accounts for effects like aerodynamic jump, and costs nothing. It runs offline and includes measured data for a wide library of long-range projectiles: Hornady's own plus popular bullets from Sierra, Berger, and others. The limits: the deepest modeling applies to bullets in its library, there's no reticle overlay to speak of, and there are no zeroing or photo tools; it tells you the correction, and the rest is on you. If your bullet is in the library and all you want is a firing solution, get it; it's free on both app stores.
One of the original serious mobile ballistic apps, around since 2010, with a solver built on Bryan Litz's work. Clean interface, Kestrel and WeatherFlow Bluetooth support, and a straightforward $19.99 one-time purchase, no subscription, which earns real respect in 2026. It's a solver in the classic mold: numbers in, firing solution out. No reticle catalog, no photo tools. A solid, proven choice for shooters who want exactly that and nothing else (shooterapp.net).
The mapping app. GeoBallistics' distinctive strength is building range cards on satellite imagery: plot your firing position and targets on the map, and it computes ranges and solutions for the whole stage. Field-match and NRL Hunter shooters swear by it. The base app is free with a one-time $14.99 Pro unlock, no subscription, which fits the Strelok-refugee sensibility. It's not a reticle app and it's not a zeroing app; it's the strongest pick when the problem is "unknown distances across a canyon," not "get this scope dialed."
The focused group-measurement tool, at $7.99, with a yearly Advanced Toolkit subscription ($9.99 a year) on top for its extra tools. Photograph your target, mark each bullet hole, and it computes group size, distance from point of aim, and a scope correction. Its own BX targets set the photo scale automatically; on other targets you set a reference size and mark two points (both per its store description, checked September 2026). It does its one job well and cheap. The differences from our approach, stated plainly: in Ballistic X you mark each hole by hand, while Zero Considerations finds the holes for you and shows you what it found; ZC's four coded corner markers also correct camera tilt and perspective, not just scale; and Ballistic X hands you a measurement and correction, while ZC carries the same photo on into turret clicks, muzzle-velocity truing, DOPE, and reticle holdovers. It shipped a complete v4 rewrite in April 2026 and has kept updating since (4.0.7 in August 2026).
We built Zero Considerations around the two things nothing else on this list combines: the reticle view Strelok users lost, and a photo-zeroing loop nobody else has.
The reticle side: 301 reticle patterns, drawn from the manufacturers' published subtension sheets. Pick your scope, set your magnification, and see your holdovers on the reticle you'll actually be looking through.
The zeroing side: print a free target with coded corner markers (or lay a cartridge on any target for scale), shoot your group, photograph it. The markers set the photo's true scale and correct camera tilt, the app finds the bullet holes and shows you what it found, and it converts your group's offset into a click count for your optic's click value and turret direction; dial it, then confirm with a group. From the same photo it can work backwards to true your muzzle velocity, so the solver matches the rifle you actually own; then feed that into DOPE cards and the reticle view. Also in the box: a full ballistic solver, height over bore worked out from your rail and mount, with 852 firearms and 1,043 optic entries built in, offset and laser zeroing, and proxy zeroing. $9.99 once, no account, no ads; measurement and ballistics run entirely on the phone, and the only network call is the optional weather auto-fill you tap.
Counted rather than rounded: 301 reticle patterns from 82 manufacturers, and 965 of the 1,043 optic entries in the app resolve to one of them; the rest are drawn as a generic pattern matched to the optic's type and units, and the reticle screen labels it as generic. Strelok drew thousands. We chose sourcing over volume. If your reticle isn't covered yet, tell us. Both iOS and Android are live now as a one-time $9.99 purchase. And no app certifies a zero: ZC tells you the correction, and you confirm it with another group, every time.
Not on Google Play or the Apple App Store; it was removed from both in 2023 and hasn't returned. (A different publisher's app called "Strelok Pro-Ballistic Platform" has been on the App Store since 2026; by its own description it isn't connected to the original.) On Android it has been reported available on the Samsung Galaxy Store and Huawei AppGallery in some regions; check on your own device. On iPhone there's no way for a new user to get it.
No. Ballistic calculators remain freely available on both stores. The apps came off in March 2023 after the U.S. State Department put the developer, Igor Borisov, on its sanctions list in February 2023, which meant Apple and Google could no longer process his payments or distribute his software. It was a sanctions and payments matter, not a content decision.
That's the hard one: most big-name solvers (AB Quantum, 4DOF, Shooter, GeoBallistics) give numeric solutions and don't draw your reticle. Zero Considerations draws 301 reticle patterns from manufacturers' published subtension figures with holdovers overlaid at your magnification, which is the closest current equivalent to what Strelok did.
Hornady 4DOF: free, offline, and built on Doppler-derived drag data that's genuinely excellent for the bullets in its library. AB Quantum's Ultralite tier is also free. Neither shows your reticle.
An installed copy generally keeps calculating. But it can't be updated through the mainstream stores, and on iPhone it can't be re-downloaded; one phone replacement can end it for good. Worth planning your exit before that day rather than after.
The two best-known in the zeroing space: Ballistic X ($7.99; you mark each hole yourself) and Zero Considerations ($9.99; it finds the holes and shows you what it found, coded markers correct tilt and scale, and the same photo flows into turret clicks, truing, and DOPE). Target-scoring apps like TargetScan also read shots from a photo for scoring.
One-time price, works with no signal, your actual reticle on screen, plus the photo-zeroing loop Strelok never had. iOS is on the App Store and Android is on Google Play. And the printable marker targets are free for anyone, app or no app.
Zero Considerations: photograph the target, get the measured group and the exact clicks to dial, then keep the DOPE. One-time $9.99 on both stores; no subscription, no account, works with no signal.
App Store: $9.99 once Google Play: $9.99 once What it does Free printable targets
On Android, Google Play gives you 48 hours to ask for a refund; try it on your next range trip and keep it only if it earns its spot in your range bag. Not ready today? Wishlist it on Google Play and Google will notify you if the price drops before opening day.