# ProblemSum vs Singapore Math Drills

The clearest difference is price: Singapore Math Drills at Free against ProblemSum's $2.99. Singapore Math Drills also leads on update cadence (every 4 days vs every 5 weeks) and iOS requirement (15.0 vs 18.0). ProblemSum's advantage is in-app purchases (none vs 10). On ads and device support there is nothing between them.

Singapore Math Drills is free to download; ProblemSum costs $2.99 up front. Singapore Math Drills sells 10 in-app purchases, starting at $19.99 per 3 months. ProblemSum asks for nothing beyond the download.

ProblemSum ships an update every 5 weeks, Singapore Math Drills every 4 days. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ProblemSum | Singapore Math Drills |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/problemsum/id1273718042/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Paid | — |
| Size | 2 MB | 21 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Aeterna Solutions](https://appshunter.io/developer/1273718041) | [Charles Arthur Caballero Agaton](https://appshunter.io/developer/6805324760) |

## What reviewers say

### ProblemSum

[App page](https://appshunter.io/ios/app/problemsum/id1273718042)

Practice math word problems aligned with the Singapore Mathematics syllabus for Primary 6 students. Get detailed solutions for each problem. The app works offline and requires no account.

**Highlights:** Random math word problem generation, Singapore Math syllabus alignment, Detailed step-by-step solutions, Offline functionality, No account required, Ad-free experience

**Features:** Vision Pro support

**In-app purchases:** none


### Singapore Math Drills

[App page](https://appshunter.io/ios/app/singapore-math-drills/id6805324758)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Student Plus Quarterly | $19.99 | per 3 months |
| Family Pro Quarterly | $29.99 | per 3 months |
| Student Basic Yearly | $34.99 | per year |
| Student Max Quarterly | $34.99 | per 3 months |
| Family Basic Yearly | $49.99 | per year |
| Family Max Quarterly | $49.99 | per 3 months |
| Student Plus Yearly | $69.99 | per year |
| Family Pro Yearly | $99.99 | per year |
| Student Max Yearly | $99.99 | per year |
| Family Max Yearly | $149.99 | per year |


## Frequently asked questions

### Is ProblemSum free?

ProblemSum costs $2.99, with no in-app purchases.

### Is Singapore Math Drills free?

Singapore Math Drills is free to download, with in-app purchases available.

### Do ProblemSum or Singapore Math Drills have ads?

Neither ProblemSum nor Singapore Math Drills shows ads.

### Which is updated more often, ProblemSum or Singapore Math Drills?

ProblemSum ships an update every 5 weeks, and Singapore Math Drills every 4 days. Most recently, ProblemSum was updated on October 3, 2026 and Singapore Math Drills 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.*