# Scan Note Write vs Blackout Math.Power Calculator

The clearest difference is review sentiment: Scan Note Write at 67% against Blackout Math.Power Calculator's 0%. Scan Note Write also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 1). Blackout Math.Power Calculator's advantage is price (Free vs $1.99) and update cadence (every 6 days vs fortnightly). On ads and device support there is nothing between them.

Blackout Math.Power Calculator is free to download; Scan Note Write costs $1.99 up front. Blackout Math.Power Calculator sells 1 one-off in-app purchase. Scan Note Write asks for nothing beyond the download.

Scan Note Write holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Blackout Math.Power Calculator has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of Scan Note Write's written reviews are positive against 0% of Blackout Math.Power Calculator's.

Scan Note Write ships an update fortnightly, Blackout Math.Power Calculator every 6 days. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Scan Note Write | Blackout Math.Power Calculator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/scan-note-write/id1349933161/reviews)** | [3.0 (5 ratings)](https://appshunter.io/ios/app/blackout-mathpower-calculator/id6755345214/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Paid | **Free** |
| Size | 82 MB | 10 MB |
| Requires iOS | **13.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Yevheniia Borunova](https://appshunter.io/developer/1684316852) |

## What reviewers say

### Scan Note Write

[App page](https://appshunter.io/ios/app/scan-note-write/id1349933161)

Extract text from images using OCR technology. Enhance your notes with marking and writing tools, eliminating the need for pen and paper. Ideal for students and professionals seeking efficient information management.

**Highlights:** Extract text from pictures, Mark and highlight information, Organize extracted text into notes, Edit and share notes, OCR language setup, Temporary image saving

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

**In-app purchases:** none


### Blackout Math.Power Calculator

[App page](https://appshunter.io/ios/app/blackout-mathpower-calculator/id6755345214)

This app helps you accurately calculate power outage durations and battery performance. It factors in real-world conditions like battery discharge, inverter efficiency, and device consumption to provide realistic estimates for runtime and charging.

**Highlights:** Calculate usable battery energy (Wh/kWh), Factor in safe depth of discharge, Account for inverter efficiency and losses, Calculate real device energy consumption, Estimate actual device runtime, Provide accurate battery charging time estimates, Explain complex energy concepts clearly

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $2.99 | one-time |


## Frequently asked questions

### Is Scan Note Write free?

Scan Note Write costs $1.99, with no in-app purchases.

### Is Blackout Math.Power Calculator free?

Blackout Math.Power Calculator is free to download, with in-app purchases available.

### Which has better reviews, Scan Note Write or Blackout Math.Power Calculator?

Scan Note Write is rated higher. Scan Note Write averages 5.0 out of 5 from 1 ratings, while Blackout Math.Power Calculator averages 3.0 from 5 ratings.

### Do Scan Note Write or Blackout Math.Power Calculator have ads?

Neither Scan Note Write nor Blackout Math.Power Calculator shows ads.

### Which is updated more often, Scan Note Write or Blackout Math.Power Calculator?

Scan Note Write ships an update fortnightly, and Blackout Math.Power Calculator every 6 days. Most recently, Scan Note Write was updated on October 13, 2026 and Blackout Math.Power Calculator on October 14, 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.*