# Basic 850 vs iMathSolve

The clearest difference is update cadence: Basic 850 at every 9 days against iMathSolve's every 2 months. iMathSolve's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Basic 850 sells 1 one-off in-app purchase and iMathSolve sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Basic 850 ships an update every 9 days, iMathSolve every 2 months. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Basic 850 | iMathSolve |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Size | 4 MB | 4 MB |
| Requires iOS | 18.0 | **17** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Zcode](https://appshunter.io/developer/1861301699) | [Asad Irfan](https://appshunter.io/developer/6776508514) |

## What reviewers say

### Basic 850

[App page](https://appshunter.io/ios/app/basic-850-core-english-words/id6776080634)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $2.99 | one-time |


### iMathSolve

[App page](https://appshunter.io/ios/app/imathsolve/id6777555246)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iMathSolver Weekly Pro | $3.99 | per 7 days |
| iMathSolver Monthly Pro | $5.99 | per month |
| iMathSolver Yearly Pro | $44.99 | per year |
| iMathSolver Lifetime Pro | $89.99 | per year |


## Frequently asked questions

### Is Basic 850 free?

Basic 850 is free to download, with in-app purchases available.

### Is iMathSolve free?

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

### Do Basic 850 or iMathSolve have ads?

Neither Basic 850 nor iMathSolve shows ads.

### Which is updated more often, Basic 850 or iMathSolve?

Basic 850 ships an update every 9 days, and iMathSolve every 2 months. Most recently, Basic 850 was updated on October 9, 2026 and iMathSolve on October 1, 2026.

---

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