# Solve vs LaserPowerMeter

The clearest difference is price: LaserPowerMeter at Free against Solve's $1.99. LaserPowerMeter also leads on iOS requirement (12.0 vs 15.6). Solve's advantage is update cadence (monthly vs every 13 months). On ads, in-app purchases and device support there is nothing between them.

LaserPowerMeter is free to download; Solve costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Solve ships an update monthly, LaserPowerMeter every 13 months. The most recent releases landed on October 16, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Solve | LaserPowerMeter |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (198 ratings)](https://appshunter.io/ios/app/solve-graphing-calculator/id299460923/reviews)** | — |
| Number of ratings | **198** | — |
| Positive reviews | 82.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 13 months |
| Monetization | Free | — |
| Size | 5 MB | 29 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pomegranate Apps LLC](https://appshunter.io/developer/293619496) | [爱新 周](https://appshunter.io/developer/1581769206) |

## What reviewers say

### Solve

[App page](https://appshunter.io/ios/app/solve-graphing-calculator/id299460923)

This app offers a powerful graphing calculator with multiple functions. It solves expressions as you type and features an innovative memory system to store and recall answers. Easily plot 2D, 3D, polar, and time-based graphs with intuitive controls.

**Highlights:** Solves expressions as you type, Innovative memory system, Four distinct calculator tabs, 2D and 3D function plotting, Polar and time graphing, Plot multiple functions simultaneously

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

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and user-friendly interface
- 💡 Multiple calculator pages for simultaneous calculations
- 📊 Powerful graphing capabilities (2D, 3D, time-based)
- 🎨 Visually appealing design with color options
- ⚡ Fast and responsive performance

**What reviewers complain about**

- 🐛 Gesture conflict with iOS swipe-to-exit (requires two swipes)
- 🐛 Home indicator hidden, complicating app exit
- 🔢 Floating-point precision errors (100 + 0.1 ≠ 100.1)
- ⚠️ Lacks percent button functionality
- ⚠️ Missing some advanced functions (floor, ceil, derivatives, integrals)

**Reported bugs**

- Swipe up from bottom requires two swipes to exit app or switch apps
- Home indicator hidden causes navigation issues
- Floating-point arithmetic errors in decimal calculations
- Inverse trigonometric functions (cos⁻¹, sin⁻¹) calculate in reverse
- Graph plotting errors (e.g., sqrt(5²-x²) shows incomplete circle)

**Requested features**

- Fix swipe-to-exit gesture conflict with iOS
- Add percent button for quick percentage calculations
- Implement undo/redo functionality
- Add calculation history storage and management
- Support for independent X/Y axis scaling


### LaserPowerMeter

[App page](https://appshunter.io/ios/app/laserpowermeter/id6472035763)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solve free?

Solve costs $1.99, with no in-app purchases.

### Is LaserPowerMeter free?

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

### Do Solve or LaserPowerMeter have ads?

Neither Solve nor LaserPowerMeter shows ads.

### Which is updated more often, Solve or LaserPowerMeter?

Solve ships an update monthly, and LaserPowerMeter every 13 months. Most recently, Solve was updated on October 16, 2026 and LaserPowerMeter on September 26, 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.*