# Reagent: Chemistry Quiz — Balance equations, learn why

> Balance equations, learn why (iPhone/iPad app by Andrii Bashta.)

- Source: https://appshunter.io/ios/app/reagent-chemistry-quiz/id6788739591 (this page in markdown: same URL + `.md`)
- Developer: [Andrii Bashta](https://appshunter.io/developer/1547467775)
- Category: Education, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 27.0 · 7 MB
- Languages: American English
- Released: 2026-09-16
- Data updated: 2026-09-29

## What is Reagent?

Reagent is chemistry revision that explains itself. When you miss a question, you decide how deep the explanation goes, and the deepest setting shows the tutor's own worked steps rather than a paragraph invented afterwards.

The answer key is hand-written and hand-checked, and the tutor is never allowed to contradict it. What changes is how much of the reasoning you get to see.

- Six concepts to drill: acids and bases, redox, kinetics, stoichiometry, organic chemistry and periodicity
- Twenty-four hand-written questions, four per concept, each with its own explanation
- Get one wrong and pick your depth: a hint, a fuller explanation, or numbered worked steps
- Balance five real equations with steppers and a live atom tally that marks each element as it evens out
- Ask why on a wrong balance and the same explanation ladder opens up
- Spaced review that brings a concept back the day you are about to forget it
- A tutor profile you can read and override, showing what it thinks you know

On a device without Apple Intelligence the explanations come from the hand-written bank at a single depth, and every question still works. It all runs offline, with no account.

Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vTDX9pxPOlUJl_skVUHPi99mAw0y2B2BYd_v1mJkoF3xW3rlOcW5KlYd4t93MMbbGhctSTnBTy7d_l6/pub
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Reagent Forever | $9.99 | one-time |


## Is Reagent safe?

Not enough ratings yet to assess Reagent.

## Is Reagent legit?

Reagent: Chemistry Quiz appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Reagent is 70 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-16

No release notes.

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All apps by Andrii Bashta: https://appshunter.io/developer/1547467775

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-29.*