# General Chemistry Test Prep vs DentShift

The clearest difference is in-app purchases: DentShift at none against General Chemistry Test Prep's 9. DentShift also leads on update cadence (weekly vs every 14 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. General Chemistry Test Prep sells 9 in-app purchases, starting at $8.99 per 7 days. DentShift asks for nothing beyond the download.

General Chemistry Test Prep ships an update every 14 months, DentShift weekly. The most recent releases landed on September 9, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | General Chemistry Test Prep | DentShift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 14 months | **Weekly** |
| Size | 53 MB | 395 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [YAUHEN BAHDANOVICH](https://appshunter.io/developer/1711932790) | [Samet UNAL](https://appshunter.io/developer/1867887641) |

## What reviewers say

### General Chemistry Test Prep

[App page](https://appshunter.io/ios/app/general-chemistry-test-prep/id6744531345)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chemistry Weekly Full Access | $8.99 | per 7 days |
| Chemistry Monthly Full Access | $24.99 | per month |
| ACS Monthly Full Access | $34.99 | per month |
| ACS Quarterly Full Access | $55.99 | per 3 months |
| ACS Quarterly Full Access | $59.99 | per 3 months |
| ACS Semiannual Full Access | $75.99 | per 6 months |
| ACS Semiannual Full Access | $79.99 | per 6 months |
| ACS Annual Full Access | $109.99 | per year |
| ACS Annual Full Access | $119.99 | per year |


### DentShift

[App page](https://appshunter.io/ios/app/dentshift/id6757620156)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is General Chemistry Test Prep free?

General Chemistry Test Prep is free to download, with in-app purchases available.

### Is DentShift free?

DentShift is free to download, with no in-app purchases.

### Do General Chemistry Test Prep or DentShift have ads?

Neither General Chemistry Test Prep nor DentShift shows ads.

### Which is updated more often, General Chemistry Test Prep or DentShift?

General Chemistry Test Prep ships an update every 14 months, and DentShift weekly. Most recently, General Chemistry Test Prep was updated on September 9, 2026 and DentShift on September 12, 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.*