# Plusfinity AI vs Chem AI

The clearest difference is review sentiment: Plusfinity AI at 78% against Chem AI's 20%. Plusfinity AI also leads on monetization model (free with in-app purchases vs subscription) and ads (none vs shown). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Plusfinity AI sells 8 in-app purchases, starting at $8.99 per 7 days and Chem AI sells 15 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Plusfinity AI holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 2.1K and 824 respectively. Written reviews point the same way: 78% of Plusfinity AI's written reviews are positive against 20% of Chem AI's.

Plusfinity AI ships an update every 2 weeks, Chem AI fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Plusfinity AI | Chem AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.1K ratings)](https://appshunter.io/ios/app/plusfinity-ai-study-better/id6466733829/reviews)** | [4.4 (824 ratings)](https://appshunter.io/ios/app/chem-ai-chemistry-solver/id6471891010/reviews) |
| Number of ratings | **2.1K** | 824 |
| Positive reviews | **77.5% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 143 MB | 149 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Plusfinity AI, Inc.](https://appshunter.io/developer/1583915688) | [ZipoApps](https://appshunter.io/developer/1671444635) |

## What reviewers say

### Plusfinity AI

[App page](https://appshunter.io/ios/app/plusfinity-ai-study-better/id6466733829)

This AI-powered study app provides step-by-step solutions, instant explanations, and practice quizzes for subjects like math, physics, and chemistry. It adapts to your learning style, offering a personalized experience to help you understand concepts better and prepare for exams.

**Highlights:** Step-by-step solutions, AI explanations, Snap question solver, Quiz practice, Math, physics, chemistry help, Personalized learning

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plusfinity Pro – Weekly | $8.99 | per 7 days |
| Plusfinity Pro | $11.99 | per month |
| Plusfinity Pro | $14.99 | per month |
| Plusfinity Pro – 3 Months | $49.99 | per 3 months |
| Plusfinity Pro | $69.99 | per year |
| Plusfinity Pro | $69.99 | per year |
| Plusfinity Pro – Yearly | $99.99 | per year |
| Plusfinity Pro | $104.99 | per year |

**What reviewers like**

- 🚀 Straight to the point explanations
- 🎓 Provides learning resources
- 👍 Intuitive and easy to use
- 🆓 Free and helpful
- 💡 Detailed step-by-step solutions

**What reviewers complain about**

- 🔢 Limited daily question limit
- 🤖 Accuracy issues with some solutions
- 🔄 Stuck in loading state after first answer
- 💰 Paywall for more features

**Reported bugs**

- Inability to read graphs
- Compatibility issues with older devices

**Requested features**

- Increase daily question limit
- Improve accuracy of solutions
- Fix loading issues after first answer
- Implement ad-based system for free access


### Chem AI

[App page](https://appshunter.io/ios/app/chem-ai-chemistry-solver/id6471891010)

Instantly solve any chemistry problem with step-by-step explanations. Upload or photograph your questions, and get detailed solutions for various chemistry topics, from high school to advanced research. Offers a free trial before subscription.

**Highlights:** Photo recognition for chemistry problems, Step-by-step solution explanations, Supports high school to doctoral research topics, Detailed math solutions, Copy and share solutions

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $0.99 | per 7 days |
| Unlimited Access | $2.99 | per 7 days |
| Unlimited Access | $3.99 | per 7 days |
| Unlimited Access | $4.99 | per 7 days |
| Unlimited Access | $5.99 | per 7 days |
| Chem AI - Chem Solver Weekly | $5.99 | per 7 days |
| Unlimited Access | $6.99 | per 7 days |
| Unlimited Access | $7.99 | per 7 days |
| Unlimited Access | $8.99 | per 7 days |
| Unlimited Access | $9.99 | per year |
| Unlimited Access | $19.99 | per month |
| Unlimited Access | $29.99 | per year |
| Chem AI - Chem Solver Yearly | $34.99 | per year |
| Unlimited Access | $39.99 | per year |
| Unlimited Access | $49.99 | per year |

**What reviewers like**

- 🚀 Quick problem solving
- 💡 Helpful for chemistry courses
- 👍 Easy to use

**What reviewers complain about**

- 🐛 Incorrect answers
- 🔒 Subscription issues
- 💰 Expensive
- 🤔 Limited functionality in advanced courses

**Reported bugs**

- Freezes or goes blank when trying to get answers
- Incompatible with some chemistry problems

**Requested features**

- Improve accuracy for organic chemistry and physical chemistry
- Add step-by-step explanations for free users
- Improve subscription management and cancellation process


## Frequently asked questions

### Is Plusfinity AI free?

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

### Is Chem AI free?

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

### Which has better reviews, Plusfinity AI or Chem AI?

Plusfinity AI is rated higher. Plusfinity AI averages 4.8 out of 5 from 2.1K ratings, while Chem AI averages 4.4 from 824 ratings.

### Do Plusfinity AI or Chem AI have ads?

Chem AI shows ads; Plusfinity AI does not.

### Which is updated more often, Plusfinity AI or Chem AI?

Plusfinity AI ships an update every 2 weeks, and Chem AI fortnightly. Most recently, Plusfinity AI was updated on October 25, 2026 and Chem AI 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.*