# Solve It vs InterestOS

The clearest difference is ads: InterestOS at none against Solve It's shown. InterestOS also leads on update cadence (weekly vs every 5 months). Solve It's advantage is iOS requirement (12.0 vs 17.0). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Solve It sells 5 one-off in-app purchases and InterestOS sells 1 in-app purchase, starting at $9.99 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 Solve It against 5.0 for InterestOS. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

Solve It ships an update every 5 months, InterestOS weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Solve It | InterestOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/solve-it-math-solver/id1361123738/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/interestos-k5-worksheets/id6790950368/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 13 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [志荣 杨](https://appshunter.io/developer/478654885) | [JAKE ROBERT CRAYCRAFT](https://appshunter.io/developer/6790950370) |

## What reviewers say

### Solve It

[App page](https://appshunter.io/ios/app/solve-it-math-solver/id1361123738)

Engage in three distinct math games designed to sharpen your mental arithmetic skills. Solve puzzles by strategically using numbers and symbols to reach a target value. Hints are available to assist you when challenges arise.

**Highlights:** Equation puzzles, Calculation challenges, Symbol puzzles, 24 Point game, Speed Challenge mode, Hint system

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8 Hints | $0.99 | one-time |
| 20 Hints | $1.99 | one-time |
| Remove ADS | $1.99 | one-time |
| 50 Hints | $4.99 | one-time |
| 240 Hints | $19.99 | one-time |


### InterestOS

[App page](https://appshunter.io/ios/app/interestos-k5-worksheets/id6790950368)

Personalized, printable learning packs for K-5 students based on their interests. Generates stories, worksheets, and parent guides aligned with academic standards. Offers a free trial and subscription for monthly packs.

**Highlights:** Personalized learning packs, Printable stories and worksheets, Parent guides for easy teaching, Aligned with academic standards, Kid-friendly artwork, Progress tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InterestOS Premium | $9.99 | per month |


## Frequently asked questions

### Is Solve It free?

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

### Is InterestOS free?

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

### Which has better reviews, Solve It or InterestOS?

Solve It and InterestOS are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.

### Do Solve It or InterestOS have ads?

Solve It shows ads; InterestOS does not.

### Which is updated more often, Solve It or InterestOS?

Solve It ships an update every 5 months, and InterestOS weekly. Most recently, Solve It was updated on October 24, 2026 and InterestOS on October 24, 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.*