Comparison

nSuns 5/3/1 vs Liftosaur

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

Head to head
About

nSuns 5/3/1

This app is a dedicated companion for the nSuns 5/3/1 strength training program. It allows users to log lifts, track progress, and automatically calculates weight progression based on training max and AMRAP results. Customizable features and progress charts help users optimize their workouts.

Highlights
  • Log lifts and track progress
  • Automatic weight progression
  • AMRAP-driven programming
  • Customizable accessory exercises
  • Rest timer with Apple Watch support
  • Progress charts for main lifts
  • iCloud sync
Features
Read full description

The dedicated tracking companion for the nSuns 5/3/1 strength program. Log your lifts, track your progress, and let the app handle the math. Your Training Max and AMRAP results drive automatic weight progression — no spreadsheets needed. FEATURES • 4-day, 5-day, 6-day Squat and 6-day Deadlift templates • Automatic weight and rep programming based on your Training Max • AMRAP-driven progression — lift more, the app adjusts automatically • Customizable accessory exercises for each day • Rest timer with Apple Watch support • Progress charts for each main lift • iCloud sync — workouts and history across all your devices • Metric and imperial units APPLE WATCH A companion watch app keeps your rest timer and current set on your wrist. ABOUT THE PROGRAM The nSuns 5/3/1 LP program was created by reddit user /u/nSuns. For details: reddit.com/r/nSuns ABOUT THIS APP Built by a lifter, for lifters. Free to download — no paywalled core features. If you find it useful, a rating in the App Store means a lot. Contact: reddit.com/u/jonnybeegod

About

Liftosaur

This app automates strength training by allowing users to build custom progressive overload programs or use pre-built routines. It tracks workouts, visualizes progress, and automatically adjusts weights and reps based on user-defined logic, making it a smart fitness companion.

Highlights
  • Automated progressive overload
  • Scriptable workout builder (Liftoscript)
  • Pre-built popular lifting programs
  • Workout tracking and progress visualization
  • Rest timers and plate calculator
  • Body weight and measurement tracking
  • Cloud backup and cross-device sync
Features
Read full description

Liftosaur is the most customizable weightlifting app and strength training tracker and planner. # Automate Your Strength Training Build your own progressive overload programs or start with proven routines like GZCLP, 5/3/1, or Basic Beginner Routine. Track every workout, visualize your progress, and fully automate your training — all in one smart fitness app. Stop guessing your next weight. Liftosaur automatically increases or decreases your weights and reps based on the logic you define. It allows to implement any possible progressive overload logic, so you can focus on lifting while the app handles the math. Liftosaur introduces Liftoscript — a simple text language for building workouts like code. Define exercises, sets, and logic once right in text, and the app updates it automatically after each session. Example: ``` # Week 1 ## Day 1 Bent Over Row / 2x5, 1x5+ / 95lb / progress: lp(2.5lb) Bench Press / 2x5, 1x5+ / 45lb / progress: lp(2.5lb) Squat / 2x5, 1x5+ / 45lb / progress: lp(5lb) ## Day 2 Chin Up / 2x5, 1x5+ / 0lb / progress: lp(2.5lb) Overhead Press / 2x5, 1x5+ / 45lb / progress: lp(2.5lb) Deadlift / 2x5, 1x5+ / 95lb / progress: lp(5lb) ``` This makes Liftosaur the only scriptable workout app — perfect for lifters who love structure, logic, and data. # Popular Programs Included Liftosaur comes with pre-built lifting programs and templates from the strength community: • All GZCL programs: GZCLP, P-Zero, The Rippler, VHF, VDIP, General Gainz, etc • 5/3/1 and its variations • Basic Beginner Routine from r/Fitness • Strong Curves • And many more! Every program is written in Liftoscript, so you can customize every detail — sets, reps, progression rules, and deloads. # Track Everything Liftosaur isn’t just a gym tracker — it’s your complete workout planner and data companion. • Rest timers & plate calculator • Body weight and measurement tracking • Graphs for exercises and progress over time • Equipment rounding & exercise substitutions • Cloud backup and cross-device sync • Web Editor for faster program creation on desktop # Made for Powerlifters and Beginners Alike Whether you’re starting your first strength program or fine-tuning an advanced powerlifting routine, Liftosaur adapts to your style. It’s a lifting program builder, progress tracker, and gym log app — all working together to make you stronger. Weightlifting is a long game, and if you're serious about lifting, building strength and sculpting your body, Liftosaur would be a great partner in your journey. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

nSuns 5/3/14 screens
Liftosaur4 screens

Verdict

The call

The clearest difference is ratings volume: nSuns 5/3/1 at 4.9K against Liftosaur's 420. On price, rating, review sentiment and update cadence 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. nSuns 5/3/1 sells 6 one-off in-app purchases and Liftosaur sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for nSuns 5/3/1 against 4.8 for Liftosaur. That said, the two scores are not equally well evidenced: nSuns 5/3/1 has 4.9K ratings behind it against 420, so its average is the more settled of the two. Written reviews are what separate them: 97% of nSuns 5/3/1's written reviews are positive against 90% of Liftosaur's.

UpkeepUpdate frequency

nSuns 5/3/1 ships an update every 9 days, Liftosaur every 6 days. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

Scorecard1 real difference · 9 level
nSuns 5/3/1 versus Liftosaur: the parameters behind the verdict, then further details
ParameternSuns 5/3/1Liftosaur
PriceFreeFree
Rating4.9 (4.9K ratings) — better4.8 (420 ratings)
Positive reviews96.7% of reviews — better89.9% of reviews
Number of ratings4.9K — better420
Update frequencyEvery 9 daysEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch — better
Requires iOS17.017.0
Further details — not scored
Size8 MB64 MB
Age rating9+17+
DeveloperJonas ReichertLiftosaur, LLC

Customer experience

nSuns 5/3/1

All ratings4,902 ratings
Positive98.7%
Neutral0.8%
Negative0.6%
Written reviews242 reviews
Positive96.7%
Neutral0.8%
Negative2.5%

Liftosaur

All ratings420 ratings
Positive95.7%
Neutral2.4%
Negative1.9%
Written reviews79 reviews
Positive89.9%
Neutral7.6%
Negative2.5%

User reviews

nSuns 5/3/1

From 4.9K App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Helps track progress
  • 🚀 Seamless workout tracking
  • 👍 Customizable templates
  • 🚀 Automatic weight calculations

Room to improve

  • 🐛 Occasional bugs or glitches
  • 💡 Lack of ability to change workout days
  • 💡 Limited accessory exercise customization
  • 💡 No option to carry over accessory exercises
  • 💡 No plate calculator or weight breakdown

Liftosaur

From 420 App Store ratings

What we love

  • ✨ Highly customizable workouts
  • 🚀 Efficient workout tracking
  • 💡 Innovative Liftoscript feature
  • 💰 Incredible value (lifetime subscription)
  • 🤝 Excellent developer support

Room to improve

  • 📚 Steep learning curve
  • 🐛 Frequent app crashes due to updates
  • 🔄 Sync issues with Apple Health
  • 🐌 UI could use a polish
  • 🤔 Some users find it too technical

Bugs and requests

nSuns 5/3/1

Reported bugs

3 issues
  • Workout template not updating correctly
  • Timer issues or disappearing on app switch
  • Inconsistencies with training max updates

Requested features

5 requests
  • Ability to customize workout days
  • Option to add and track custom accessory exercises
  • Carry over accessory exercises to next cycle
  • Plate calculator or weight breakdown feature
  • Notes section for each workout

Liftosaur

Reported bugs

8 issues
  • App crashes frequently after updates
  • Syncing issues with iPhone Health app
  • App freezes on startup screen, requires reinstallation
  • Changes to program not saving correctly
  • Error when trying to set different warm-ups for different weeks
Show 3 more
  • Cannot change equipment type from cable to barbell
  • Pulls reps and weight from wrong days
  • Newest update crashes the app, prevents program selection/editing

Requested features

4 requests
  • Dark mode option
  • Ability to use kgs for barbell and lbs for dumbbells
  • More intuitive UI for beginners
  • Improved documentation/organization of ideas

In-app purchases

6 purchases

nSuns 5/3/1

One-time6
  • Beer$0.99
  • Coffee$1.99
  • Protein Brownie$2.99
Show 3 more
  • Protein Shake$3.99
  • Gym Weekly Fee$4.99
  • Supporter$8.99
3 purchases

Liftosaur

Subscriptions2
  • Monthly Subscription14 Days trial$4.991 Month
  • Yearly Subscription14 Days trial$39.991 Year
One-time1
  • Lifetime Subscription$99.99

Questions

Is nSuns 5/3/1 free?
nSuns 5/3/1 is free to download, with in-app purchases available.
Is Liftosaur free?
Liftosaur is free to download, with in-app purchases available.
Which has better reviews, nSuns 5/3/1 or Liftosaur?
nSuns 5/3/1 is rated higher. nSuns 5/3/1 averages 4.9 out of 5 from 4.9K ratings, while Liftosaur averages 4.8 from 420 ratings.
Do nSuns 5/3/1 or Liftosaur have ads?
Neither nSuns 5/3/1 nor Liftosaur shows ads.
Which is updated more often, nSuns 5/3/1 or Liftosaur?
nSuns 5/3/1 ships an update every 9 days, and Liftosaur every 6 days. Most recently, nSuns 5/3/1 was updated on October 18, 2026 and Liftosaur on October 17, 2026.

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