True Weight vs Interval Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
True Weight
This app helps you understand your true weight progress by smoothing out daily fluctuations. It provides insights to tune your diet and stay motivated for long-term results. Track years of data with customizable graphs and easy export options.
- Understand true weight progress
- Daily energy surplus calculation
- Record weight in multiple units
- Store up to 20 years of data
- Customizable graphs
- Data backup and import
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• Understand your weight. • Stay motivated. • Tune your diet. • Get long term results. Keeping track of your diet is difficult. Daily weight fluctuations mask your real progress and make you feel like giving up. Use True Weight and you'll get a clear picture of your progress and stay motivated. Once you understand your True Weight, our 'Daily Energy' value helps you tune your diet without the need for complex calorie counting. Features: • Record in kilograms, pounds, or stones. • Store up to 20 years of weight data. • Withings scale support. • Graphs from 1 month to 20 years. • Full screen landscape graphs. • Easy to read weight change information. • Daily energy surplus calculation. • Backup your data using email or web export. • Import existing data. SUPPORT: If you experience any problems when using True Weight please email us at trueweight@me.com.
Interval Trainer
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With Interval Trainer, you can create timed interval exercise workouts, and do the workouts with both a visual workout countdown display and voice prompts to help you know where you are in your workout.
Screenshots
Verdict
The clearest difference is price: Interval Trainer at Free against True Weight's $0.99. True Weight's advantage is update cadence (every 6 weeks vs every 15 months) and iOS requirement (9.3 vs 16.4). On 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
Interval Trainer is free to download; True Weight costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
True Weight ships an update every 6 weeks, Interval Trainer every 15 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.
| Parameter | True Weight | Interval Trainer |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.4 (39 ratings) — better | — |
| Positive reviews | 81.6% of reviews | — |
| Number of ratings | 39 — better | — |
| Update frequency | Every 6 weeks — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.3 — better | 16.4 |
| Further details — not scored | ||
| Size | 2 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | made-up software | Luke Taylor |
Bugs and requests
True Weight
Reported bugs
3 issues- Crashes when entering new weight data
- Withings scale integration no longer working
- Incorrect weight unit conversions
Requested features
5 requests- Add BMI tracking and visualization
- Integrate with Apple Health and other fitness apps
- Expand data history and customizable date ranges
- Introduce user profiles and multi-user support
- Add more weight measurement units and conversion options
Interval Trainer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
True Weight
No in-app purchases
Interval Trainer
No in-app purchases
