# Sum Loop vs Sum

The clearest difference is update cadence: Sum at every 3 days against Sum Loop's every 4 months. Sum Loop's advantage is iOS requirement (14.0 vs 17.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Sum Loop sells 1 one-off in-app purchase and Sum sells 1 in-app purchase, starting at $1.99 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 Sum Loop against 5.0 for Sum. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Sum Loop ships an update every 4 months, Sum every 3 days. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Sum Loop | Sum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sum-loop/id6447087917/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sum-math-puzzle-brain-game/id6450458099/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 9 MB | 20 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Goro Sato](https://appshunter.io/developer/412448991) | [Whimseed Studio Private Limited](https://appshunter.io/developer/1668117901) |

## What reviewers say

### Sum Loop

[App page](https://appshunter.io/ios/app/sum-loop/id6447087917)

A challenging puzzle game where players place blocks into overlapping loops to match displayed sums. Offers multiple solutions for each puzzle, providing replayability. Designed for quick, engaging gameplay.

**Highlights:** Match sums in overlapping loops, Place blocks to solve puzzles, Multiple solutions per puzzle, Challenging gameplay, Intuitive block placement

**Features:** macOS Compatibility

**In-app purchases (1)**

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


### Sum

[App page](https://appshunter.io/ios/app/sum-math-puzzle-brain-game/id6450458099)

This game challenges you to find sums from a grid of numbers before time runs out. It offers multiple modes, from fast-paced challenges to relaxed untimed play, and helps improve mental agility and logic skills.

**Highlights:** Timed addition challenges, Four distinct game modes, Offline play supported, Compete with friends, Detailed progress statistics, Sleek user interface

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |


## Frequently asked questions

### Is Sum Loop free?

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

### Is Sum free?

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

### Which has better reviews, Sum Loop or Sum?

Sum Loop and Sum are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Sum Loop or Sum have ads?

Both Sum Loop and Sum show ads.

### Which is updated more often, Sum Loop or Sum?

Sum Loop ships an update every 4 months, and Sum every 3 days. Most recently, Sum Loop was updated on October 2, 2026 and Sum on September 28, 2026.

---

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