# DotPass Passwords vs Blackout Math.Power Calculator

The clearest difference is review sentiment: DotPass Passwords at 60% against Blackout Math.Power Calculator's 0%. DotPass Passwords also leads on rating (4.3 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 (weekly vs every 4 months). On ads and device support there is nothing between them.

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

DotPass Passwords holds the better App Store score, 4.3 against 3.0. Both are backed by a comparable volume of ratings — 22 and 5 respectively. Written reviews point the same way: 60% of DotPass Passwords's written reviews are positive against 0% of Blackout Math.Power Calculator's.

DotPass Passwords ships an update every 4 months, Blackout Math.Power Calculator weekly. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | DotPass Passwords | Blackout Math.Power Calculator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.3 (22 ratings)](https://appshunter.io/ios/app/dotpass-passwords/id794993247/reviews)** | [3.0 (5 ratings)](https://appshunter.io/ios/app/blackout-mathpower-calculator/id6755345214/reviews) |
| Number of ratings | **22** | 5 |
| Positive reviews | **60.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 10 MB |
| Requires iOS | **13.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lost Minds](https://appshunter.io/developer/416075651) | [Yevheniia Borunova](https://appshunter.io/developer/1684316852) |

## What reviewers say

### DotPass Passwords

[App page](https://appshunter.io/ios/app/dotpass-passwords/id794993247)

Generate and retrieve secure passwords using a unique combination of a graphical pattern and a seed word. This app creates strong, random-looking passwords without storing any sensitive information on your device or online, ensuring offline access and enhanced security.

**Highlights:** Graphical pattern-based password generation, Plain text seed word input, Offline password retrieval, No password storage or transmission, Adjustable password length (9 or 18 characters), Copy-to-clipboard functionality, Automatic pasteboard clearing

**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 | $7.99 | one-time |


## Frequently asked questions

### Is DotPass Passwords free?

DotPass Passwords 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, DotPass Passwords or Blackout Math.Power Calculator?

DotPass Passwords is rated higher. DotPass Passwords averages 4.3 out of 5 from 22 ratings, while Blackout Math.Power Calculator averages 3.0 from 5 ratings.

### Do DotPass Passwords or Blackout Math.Power Calculator have ads?

Neither DotPass Passwords nor Blackout Math.Power Calculator shows ads.

### Which is updated more often, DotPass Passwords or Blackout Math.Power Calculator?

DotPass Passwords ships an update every 4 months, and Blackout Math.Power Calculator weekly. Most recently, DotPass Passwords was updated on October 23, 2026 and Blackout Math.Power Calculator on October 28, 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.*