# Delta vs Weight Tracker

The clearest difference is monetization model: Delta at free against Weight Tracker's freemium. Weight Tracker's advantage is update cadence (every 2 days vs every 11 days). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Delta sells 1 one-off in-app purchase and Weight Tracker sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Delta ships an update every 11 days, Weight Tracker every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Delta | Weight Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/delta-tdee-tracker/id6753978074/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 2 days** |
| Monetization | **Free** | Freemium |
| Size | 17 MB | 82 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Marcel Timm](https://appshunter.io/developer/1846068948) | [Johannes Müller](https://appshunter.io/developer/1671310660) |

## What reviewers say

### Delta

[App page](https://appshunter.io/ios/app/delta-tdee-tracker/id6753978074)

This app calculates your actual daily energy expenditure (TDEE) based on your logged weight and calorie intake, moving beyond generic formulas. It provides personalized calorie targets for cutting, maintaining, or bulking, adapting over time for increased accuracy.

**Highlights:** Daily weight and calorie logging, Adaptive TDEE calculation, 28-day smoothing for stable targets, Goal-based calorie targets, Apple Health integration, Daily logging reminders

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Delta Unlimited | $2.99 | one-time |


### Weight Tracker

[App page](https://appshunter.io/ios/app/weight-tracker-lean-is-law/id6821654663)

Track your weight progress by focusing on your trend rather than daily fluctuations. Plan and manage bulk, cut, and maintenance phases with specific weekly goals. Log calories, macros, and supplements, and visualize your progress with photos and measurements.

**Highlights:** Trend weight tracking, Phase planning (Bulk, Cut, Maintain), Calorie and macro logging, Progress photos, Supplement reminders, Apple Health integration, CSV/JSON export

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lean is law Pro Monthly | $1.99 | per month |
| Lean is law Pro Yearly | $11.99 | per year |
| Lean is law Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Delta free?

Delta is free to download, with in-app purchases available.

### Is Weight Tracker free?

Weight Tracker is free to download, with in-app purchases available.

### Do Delta or Weight Tracker have ads?

Neither Delta nor Weight Tracker shows ads.

### Which is updated more often, Delta or Weight Tracker?

Delta ships an update every 11 days, and Weight Tracker every 2 days. Most recently, Delta was updated on November 5, 2026 and Weight Tracker on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*