# Algebra I Quick Reference vs Calculus Solver

The clearest difference is price: Calculus Solver at Free against Algebra I Quick Reference's $0.99. Calculus Solver also leads on update cadence (every 11 months vs every 36 months). Algebra I Quick Reference's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 17.6). On ads and device support there is nothing between them.

Calculus Solver is free to download; Algebra I Quick Reference costs $0.99 up front. Calculus Solver sells 2 in-app purchases, starting at $4.99 per 7 days. Algebra I Quick Reference asks for nothing beyond the download.

Algebra I Quick Reference ships an update every 36 months, Calculus Solver every 11 months. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Algebra I Quick Reference | Calculus Solver |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 11 months** |
| Size | 4 MB | 12 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Nicolas Gustavo Melian](https://appshunter.io/developer/1777868675) |

## What reviewers say

### Algebra I Quick Reference

[App page](https://appshunter.io/ios/app/algebra-i-quick-reference/id560359498)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculus Solver

[App page](https://appshunter.io/ios/app/calculus-solver-step-by-step/id6753817856)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Yearly Plan | $24.99 | per year |


## Frequently asked questions

### Is Algebra I Quick Reference free?

Algebra I Quick Reference costs $0.99, with no in-app purchases.

### Is Calculus Solver free?

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

### Do Algebra I Quick Reference or Calculus Solver have ads?

Neither Algebra I Quick Reference nor Calculus Solver shows ads.

### Which is updated more often, Algebra I Quick Reference or Calculus Solver?

Algebra I Quick Reference ships an update every 36 months, and Calculus Solver every 11 months. Most recently, Algebra I Quick Reference was updated on September 18, 2026 and Calculus Solver on September 9, 2026.

---

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