# SDay vs WeightSnap AI

The clearest difference is ads: SDay at none against WeightSnap AI's shown. WeightSnap AI's advantage is update cadence (every 3 days vs monthly) and monetization model (ad-supported vs freemium). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. SDay sells 3 in-app purchases, starting at $4.99 per month and WeightSnap AI sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for SDay against 5.0 for WeightSnap AI. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews are what separate them: 96% of SDay's written reviews are positive against 100% of WeightSnap AI's.

SDay ships an update monthly, WeightSnap AI every 3 days. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SDay | WeightSnap AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/sday/id6742406337/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/weightsnap-ai/id6773221130/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | 95.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Freemium | **Ad-supported** |
| Size | 54 MB | 84 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Kirill Karavaev](https://appshunter.io/developer/1822553564) | [OLEG STASYUK](https://appshunter.io/developer/1882145619) |

## What reviewers say

### SDay

[App page](https://appshunter.io/ios/app/sday/id6742406337)

Simplify your life and enhance productivity with this straightforward application. It aims to cut through complexity, offering tools to help you achieve more. Designed for ease of use, it focuses on improving daily routines.

**Highlights:** Life improvement tools, Productivity boost, Simplified interface, Focus on daily routines

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SDay Pro Monthly | $4.99 | per month |
| SDay Pro Annual | $49.99 | per year |
| SDay Pro Lifetime | $149.99 | one-time |


### WeightSnap AI

[App page](https://appshunter.io/ios/app/weightsnap-ai/id6773221130)

Effortlessly track your weight and body metrics with AI-powered photo recognition. Scan scale readings and food plates for instant logging and nutritional estimates. Get personalized insights and analyze trends to support your health journey.

**Highlights:** Instant OCR weight logging from scale photos, AI nutritional estimates from food photos, Personalized AI insights and trend analysis, Track waist measurements and progress photos, Smart workout logging with weather data, Local data backups and privacy-focused storage, Unit conversion for weight, length, and temperature

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $7.99 | per month |
| Annual Premium | $79.99 | per year |


## Frequently asked questions

### Is SDay free?

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

### Is WeightSnap AI free?

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

### Which has better reviews, SDay or WeightSnap AI?

SDay and WeightSnap AI are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.

### Do SDay or WeightSnap AI have ads?

WeightSnap AI shows ads; SDay does not.

### Which is updated more often, SDay or WeightSnap AI?

SDay ships an update monthly, and WeightSnap AI every 3 days. Most recently, SDay was updated on October 18, 2026 and WeightSnap AI on October 5, 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.*