Comparison

Zirv vs Strontr

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Zirv

Features
Read full description

Zirv is a workout tracker built for hybrid training: strength programs with RPE and automatic progressive overload, plus running, in one app for iPhone, Apple Watch, and the web. Plan. Lift. Run. Watch the numbers move. Most fitness apps pick a lane. Zirv doesn't. Whether you're a lifter who runs on off days, a runner adding strength work, or someone doing both on purpose, your training lives in one place instead of two apps that don't talk to each other. STRENGTH TRAINING, COACHED Build real programs, not just workout logs: phases, weeks, and days, with RPE targets, supersets, and alternates. Zirv tracks your estimated 1RM trend and adjusts your working weights as you get stronger (progressive overload), then pulls back the load on schedule so fatigue doesn't wreck your next block (auto-deload). No spreadsheet required. RUNNING, TRACKED PROPERLY GPS-tracked runs with pace, distance, and route, sitting next to your lifting data instead of living in a separate app. See how a heavy squat day affects tomorrow's easy run, or how a hard week of running shows up in your lifts. ANALYTICS THAT SHOW WHETHER IT'S WORKING Charts and trends for estimated 1RM, volume, and personal records over time, so you can see whether a program is actually producing results instead of guessing. If a block isn't working, the trends help you spot it early. NATIVE iPHONE AND APPLE WATCH A real native Apple Watch app for tracking sets, reps, and runs from your wrist, built alongside the iPhone app instead of bolted on afterward. Plan your next block from the web app at a desk, then execute it on your phone or watch at the gym. WORKS WHEN THE GYM WIFI DOESN'T Zirv is offline-first. Log a set, finish a superset, or track a run with one bar of signal in a basement gym, and it syncs the moment you're back online. SHARE PLANS, STAY IN SYNC Share a program with a training partner or client as a linked copy. Update the original and their copy updates too, so nobody is training off an outdated PDF. 1,171 EXERCISES A full exercise library with instructions and a 3D animation of every exercise, with the working muscles highlighted. Included in your free first month and with Pro. Available in English, Danish, German, Spanish, Finnish, Norwegian, and Swedish. Free for your first month, with every feature unlocked. After that, Zirv Pro is the paid plan with unlimited plans, plan sharing, and the full analytics suite. Cancel anytime, no phone call required. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Strontr

This app helps you structure your fitness journey, whether you're lifting weights or running. Plan custom workouts, log sets with ease, and track your progress over time. It offers automatic program progression and offline functionality for uninterrupted training.

Highlights
  • Custom workout split planning
  • Smart set logging with rest timer
  • Automatic program progression
  • Cardio and running tracking
  • Offline functionality
  • Personal records tracking
Features
Read full description

Strontr is the workout app built for lifters, runners, and anyone who wants structured training without the spreadsheet. Train heavier. Run further. Own the streak. Start free. The free account is extremely generous. PLAN YOUR TRAINING • Build your own splits — as many plans and days as you like • Pin days to weekdays, or keep them flexible with “Any day” • Merge two days into one session when time is short • Duplicate a whole plan to try a variation without losing the original LOG FAST • Log weight, reps and notes in a couple of taps • Automatic rest timer between sets • Supersets, timed holds and single-side exercises, logged per side • Your plan remembers the weight, reps and rest you used last • Full exercise history and automatic personal records EVOLVE PLAN · PRO Your Evolve Plan adapts every week to what you actually lifted. Hit your targets and it adds reps, then weight. Miss them and it holds or eases off. Stall for a few weeks and it schedules a lighter week so you come back stronger. Every change comes with its reason. CARDIO EVOLVE PLAN · PRO Runs, walks and hikes with GPS distance, pace, splits and voice cues. Your Cardio Evolve Plan builds each week's sessions — from easy walks to intervals to long runs — and adjusts to how your last weeks went. STATS THAT MATTER • Weekly volume, streaks, muscle focus and a training calendar • Body weight and body fat tracking, synced with Apple Health ON YOUR WRIST • An Apple Watch app to follow your workout and log sets from your wrist BUILT FOR THE GYM FLOOR • Works offline and syncs when you're back online • No ads. No social feed. • Use the app in your own language AN EXTREMELY GENEROUS FREE ACCOUNT Strontr's free account is extremely generous: the exercise library, unlimited plans of your own, your full workout history and the calendar are free forever, with no limits and no ads. STRONTR PRO Evolve Plan, Cardio Evolve Plan, advanced analytics and more. Start with a 2-week free trial. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Terms: https://strontr.com/terms Privacy: https://strontr.com/privacy

Screenshots

Zirv4 screens
Strontr4 screens

Verdict

The call

The clearest difference is update cadence: Strontr at every 3 days against Zirv's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Zirv sells 2 in-app purchases, starting at $3.99 per month and Strontr sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Zirv ships an update weekly, Strontr every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 8 level
Zirv versus Strontr: the parameters behind the verdict, then further details
ParameterZirvStrontr
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS16.0 — better17.0
Further details — not scored
Size22 MB230 MB
Age rating4+4+
DeveloperJonathan Solskov JensenMatthew Schauki

In-app purchases

2 purchases

Zirv

Subscriptions2
  • Zirv Fitness Pro - Monthly1 Month trial$3.991 Month
  • Zirv Fitness Pro - Yearly1 Month trial$34.991 Year
2 purchases

Strontr

Subscriptions2
  • Strontr Pro Monthly14 Days trial$5.991 Month
  • Strontr Pro Yearly14 Days trial$39.991 Year

Questions

Is Zirv free?
Zirv is free to download, with in-app purchases available.
Is Strontr free?
Strontr is free to download, with in-app purchases available.
Do Zirv or Strontr have ads?
Neither Zirv nor Strontr shows ads.
Which is updated more often, Zirv or Strontr?
Zirv ships an update weekly, and Strontr every 3 days. Most recently, Zirv was updated on October 28, 2026 and Strontr on October 31, 2026.

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