Complex Map vs B# or Bb
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Complex Map
This app visualizes complex variable functions by transforming images mapped to the complex plane. It allows users to import their own images or use predefined ones, and export the results.
- Complex function parser
- Predefined and custom image import
- Image export and sharing
- Supports standard functions and constants
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Complex Map visualizes functions of a complex variable by transforming an image mapped to the complex plane. Features: * complex function parser that handles all standard functions and constants * chose a base image from a set of predefined images or import your own images from your photo library * export the resulting image back to your library or share it with others
B# or Bb
This app helps you develop your musical ear and vocal abilities. You can hear a note and then replicate it on a piano, or by singing or whistling. It's designed for ear training and vocal practice.
- Hear and match notes
- Replicate notes by singing
- Replicate notes by whistling
- Piano interface for note matching
- Ear training exercises
- Vocal practice tools
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Hear a note and match it on the piano, or reproduce it by singing or whistling.
Screenshots
Verdict
The clearest difference is review sentiment: Complex Map at 100% against B# or Bb's 50%. Complex Map also leads on rating (5.0 vs 4.0) and iOS requirement (7.1 vs 15.1). B# or Bb's advantage is in-app purchases (none vs 1) and update cadence (every 8 days vs every 2 months). On price, ratings volume, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Complex Map sells 1 one-off in-app purchase. B# or Bb asks for nothing beyond the download.
Complex Map holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 100% of Complex Map's written reviews are positive against 50% of B# or Bb's.
Complex Map ships an update every 2 months, B# or Bb every 8 days. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.
| Parameter | Complex Map | B# or Bb |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 3 | 4 — better |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 7.1 — better | 15.1 |
| Further details — not scored | ||
| Size | 5 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | TinkaTinka | Mark Rose |
Customer experience
Complex Map
B# or Bb
In-app purchases
Complex Map
- Remove Ads$1.99
B# or Bb
No in-app purchases
