# iBFDmonochrome vs Tachbase

The clearest difference is rating: Tachbase at 5.0 against iBFDmonochrome's 4.4. Tachbase also leads on update cadence (every 6 days vs every 11 months). iBFDmonochrome's advantage is in-app purchases (none vs 2) and ratings volume (9 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. Tachbase sells 2 in-app purchases, starting at $5.99 per month. iBFDmonochrome asks for nothing beyond the download.

Tachbase holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 9 and 2 respectively.

iBFDmonochrome ships an update every 11 months, Tachbase every 6 days. The most recent releases landed on October 20, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | iBFDmonochrome | Tachbase |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (9 ratings)](https://appshunter.io/ios/app/ibfdmonochrome/id1413179229/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tachbase-pilot-efb/id6761747729/reviews)** |
| Number of ratings | **9** | 2 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 days** |
| Monetization | **Free** | Freemium |
| Size | 12 MB | 69 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tatsuo Saeki](https://appshunter.io/developer/1195301026) | [808 Heavy Industries LLC](https://appshunter.io/developer/1891258105) |

## What reviewers say

### iBFDmonochrome

[App page](https://appshunter.io/ios/app/ibfdmonochrome/id1413179229)

This app provides pilots with a backup flight display, including an attitude indicator, heading indicator, and altimeter. It can also function as a flight data and cockpit voice recorder, offering essential information in emergencies when primary instruments fail.

**Highlights:** Attitude Indicator, Heading Indicator, Altimeter, Flight Data Recorder (FDR), Cockpit Voice Recorder (CVR), Map with airport information, Multiple display color modes

**Features:** macOS Compatibility

**In-app purchases:** none


### Tachbase

[App page](https://appshunter.io/ios/app/tachbase-pilot-efb/id6761747729)

This app provides pilots with essential tools for flight planning, in-cockpit navigation, and flight logging. It offers offline access to charts, weather data, and airport information, enhancing situational awareness and simplifying post-flight record-keeping.

**Highlights:** Offline moving map with VFR/IFR charts, Georeferenced approach plates and procedures, Airport information and weather data, Live traffic and weather with ADS-B receiver, IFR/VFR flight plan filing and management, Smart logbook with auto-logging and currency tracking, Customizable checklists

**Features:** iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tachbase Pro Monthly | $5.99 | per month |
| Tachbase Pro Annual | $59.99 | per year |


## Frequently asked questions

### Is iBFDmonochrome free?

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

### Is Tachbase free?

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

### Which has better reviews, iBFDmonochrome or Tachbase?

Tachbase is rated higher. iBFDmonochrome averages 4.4 out of 5 from 9 ratings, while Tachbase averages 5.0 from 2 ratings.

### Do iBFDmonochrome or Tachbase have ads?

Neither iBFDmonochrome nor Tachbase shows ads.

### Which is updated more often, iBFDmonochrome or Tachbase?

iBFDmonochrome ships an update every 11 months, and Tachbase every 6 days. Most recently, iBFDmonochrome was updated on October 20, 2026 and Tachbase 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.*