# SnapCalc vs Trigonometry Help Lite

The clearest difference is review sentiment: Trigonometry Help Lite at 88% against SnapCalc's 25%. Trigonometry Help Lite also leads on ads (none vs shown) and rating (4.6 vs 4.2). SnapCalc's advantage is ratings volume (41K vs 779). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. SnapCalc sells 9 in-app purchases, starting at $1.99 per 7 days and Trigonometry Help Lite sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Trigonometry Help Lite holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: SnapCalc has 41K ratings behind it against 779, so its average is the more settled of the two. Written reviews point the same way: 25% of SnapCalc's written reviews are positive against 88% of Trigonometry Help Lite's.

SnapCalc ships an update monthly, Trigonometry Help Lite every 6 weeks. Both last shipped on October 21, 2026.

## The numbers

| Metric | SnapCalc | Trigonometry Help Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (41K ratings)](https://appshunter.io/ios/app/snapcalc-math-problem-solver/id1267331464/reviews) | **[4.6 (779 ratings)](https://appshunter.io/ios/app/trigonometry-help-lite/id1465685523/reviews)** |
| Number of ratings | **41K** | 779 |
| Positive reviews | 25.3% of reviews | **87.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 129 MB | 17 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mosaic S.r.l.](https://appshunter.io/developer/570748343) | [Armchair Engineering](https://appshunter.io/developer/398901339) |

## What reviewers say

### SnapCalc

[App page](https://appshunter.io/ios/app/snapcalc-math-problem-solver/id1267331464)

Instantly solve math problems by taking a photo. Get step-by-step explanations for algebra, calculus, and more. Practice with quizzes and access educational resources.

**Highlights:** Camera-based math problem solving, Step-by-step solution explanations, Recognizes handwritten problems, Quizzes for skill practice, Integrated educational resources, Problem history saving

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Step-by-step Solutions 1 Week | $1.99 | per 7 days |
| Step-By-Step Solutions 1 Month | $3.99 | per month |
| Step-by-step Solutions 1 Month | $4.99 | per month |
| Step-by-step Solutions 1 Week | $4.99 | per 7 days |
| Step-by-step Solutions 1 Month | $4.99 | per 7 days |
| Step-by-step Solutions 1 Week | $5.99 | per 7 days |
| Step-by-step Solutions 1 Month | $6.99 | per month |
| Step-by-step Solutions 3 M | $29.99 | per 3 months |
| Step-by-step Solutions 1 Year | $39.99 | per year |

**What reviewers like**

- 🚀 Helpful for solving math problems
- 👍 Provides step-by-step solutions
- 💡 Useful for students struggling with math

**What reviewers complain about**

- 💰 Expensive subscription model
- 🔒 Difficult to cancel subscription
- 🐛 Inaccurate problem recognition
- 🔍 Limited free usage

**Reported bugs**

- App crashes when trying to solve problems
- Subscription charges continue even after cancellation

**Requested features**

- Expand free version capabilities
- Improve problem recognition accuracy
- Add option to purchase one-time access


### Trigonometry Help Lite

[App page](https://appshunter.io/ios/app/trigonometry-help-lite/id1465685523)

This app quickly calculates unknown angles and sides of right-angled triangles. It offers a workings view for detailed solutions, scale drawings, and a formula reference. Input angles in various formats and customize decimal precision.

**Highlights:** Solve right-angled triangles, View detailed math workings, Scale drawing of solved triangle, Basic trig formulae reference, Multiple angle input formats, Customizable decimal places

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trig Help Premium | $2.99 | one-time |
| Trig Help Premium | $3.99 | one-time |
| Trig Help Premium | $5.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive user interface
- 🚀 Quick and fast calculations
- 💼 Practical for professional use (construction, surveying)
- ✅ Reliable and doesn't crash
- 📚 Helpful for learning trigonometry

**What reviewers complain about**

- 💰 Unclear upgrade value proposition
- 📊 Limited decimal place precision in free version
- 🔍 Insufficient feature differentiation between tiers
- ⚠️ Calculation accuracy issues reported

**Reported bugs**

- Incorrect calculation results in some cases

**Requested features**

- Better visual representation of triangles
- Clearer explanation of premium features
- Higher default decimal place precision
- More detailed feature descriptions for paid tiers


## Frequently asked questions

### Is SnapCalc free?

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

### Is Trigonometry Help Lite free?

Trigonometry Help Lite is free to download, with in-app purchases available.

### Which has better reviews, SnapCalc or Trigonometry Help Lite?

Trigonometry Help Lite is rated higher. SnapCalc averages 4.2 out of 5 from 41K ratings, while Trigonometry Help Lite averages 4.6 from 779 ratings.

### Do SnapCalc or Trigonometry Help Lite have ads?

SnapCalc shows ads; Trigonometry Help Lite does not.

### Which is updated more often, SnapCalc or Trigonometry Help Lite?

SnapCalc ships an update monthly, and Trigonometry Help Lite every 6 weeks. Most recently, SnapCalc was updated on October 21, 2026 and Trigonometry Help Lite on October 21, 2026.

---

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