# Sum Fun vs Antidote Lab Assistant

The clearest difference is in-app purchases: Sum Fun at none against Antidote Lab Assistant's 1. Sum Fun also leads on update cadence (weekly vs monthly) and ratings volume (33 vs 4). Antidote Lab Assistant's advantage is ads (none vs shown) and iOS requirement (5.1.1 vs 15.0). On price, rating, review sentiment and device support there is nothing between them.

Both are free to download. Antidote Lab Assistant sells 1 one-off in-app purchase. Sum Fun asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Sum Fun against 4.8 for Antidote Lab Assistant. That said, the two scores are not equally well evidenced: Sum Fun has 33 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Sum Fun ships an update weekly, Antidote Lab Assistant monthly. The most recent releases landed on September 18, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Sum Fun | Antidote Lab Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (33 ratings)](https://appshunter.io/ios/app/sum-fun/id817544892/reviews)** | [4.8 (4 ratings)](https://appshunter.io/ios/app/antidote-lab-assistant/id1028844110/reviews) |
| Number of ratings | **33** | 4 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Monthly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 195 MB | 13 MB |
| Requires iOS | 15.0 | **5.1.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Greg Sharpe](https://appshunter.io/developer/817544895) | [Bellwether Games LLC](https://appshunter.io/developer/1033401822) |

## What reviewers say

### Sum Fun

[App page](https://appshunter.io/ios/app/sum-fun/id817544892)

A unique number puzzle game that combines logic, numbers, and strategy. Enjoy endlessly replayable puzzles with creative board shapes and a brain-boosting gameplay experience. Play at your own pace with no time limits and challenge friends.

**Highlights:** Unique number puzzle gameplay, Variety of creative board shapes, Brain-boosting mental workout, No time limits for relaxed play, Challenge friends offline, Easy to play, fun to master

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

**In-app purchases:** none


### Antidote Lab Assistant

[App page](https://appshunter.io/ios/app/antidote-lab-assistant/id1028844110)

This companion app helps players track formulas in the card game Antidote. Mark formulas with 'X' or '?' to aid deduction and improve your chances of survival. Offers premium features like ad removal and special formula tracking.

**Highlights:** Track game formulas, Mark formulas with 'X' or '?', Clear notation with reset button, Remove ads (in-app purchase), Premium features (exploding formulas), 15-minute premium trial

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Sum Fun free?

Sum Fun is free to download, with no in-app purchases.

### Is Antidote Lab Assistant free?

Antidote Lab Assistant is free to download, with in-app purchases available.

### Which has better reviews, Sum Fun or Antidote Lab Assistant?

Sum Fun is rated higher. Sum Fun averages 4.9 out of 5 from 33 ratings, while Antidote Lab Assistant averages 4.8 from 4 ratings.

### Do Sum Fun or Antidote Lab Assistant have ads?

Sum Fun shows ads; Antidote Lab Assistant does not.

### Which is updated more often, Sum Fun or Antidote Lab Assistant?

Sum Fun ships an update weekly, and Antidote Lab Assistant monthly. Most recently, Sum Fun was updated on September 18, 2026 and Antidote Lab Assistant on June 10, 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.*