RepeaterBook vs Thread Length Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RepeaterBook
Access a comprehensive, offline directory of amateur radio repeaters worldwide. Search by various criteria, view detailed information including distance and bearing, and easily submit updates. Optimized for both phones and tablets.
- Offline repeater directory
- Worldwide coverage
- Comprehensive search options
- Distance and bearing display
- Submit updates
- Portrait/Landscape views
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RepeaterBook Amateur Radio's most comprehensive, worldwide, FREE repeater directory. Powered by the popular community database of RepeaterBook.com Easily find repeaters across the world. • No network connection required. • Comprehensive search, selection and sorting. • Displays distance, heading and full repeater details. • Fast and flexible, to help you use repeaters. • Portrait or Landscape views for phone and tablets. • Easily submit updates/additions. Repeater List View Distance, bearing and details of the nearby repeaters. Current Locator/Grid/Lat Long/Town. Portrait or Landscape views for phone and tablets. Repeater Detail View Distance, bearing and details of the repeater. Portrait or Landscape views for phone and tablets. Submit an update if needed! Search No internet needed, fast and reliable. Results from your current or searched location. Results generated as you type. Search By • Town (Greater than 5k population) - portland • Town State - portland tn • USA ZIP Code - 90210 • Repeater Call - GB7SV • Repeater Frequency - 433.325 • Locator - Enter a 4 or 6 figure locator in search box and press search • Latitude Longitude - Enter Latitude Longitude (Locale specific decimal point) in search box and press search • Wildcard - * for "wildcard matches" *ford matches Bedford, Hertford Search Results • Selecting a town changes your location to show Repeaters near that town. • Selecting a repeater displays all the info on the repeater. Search History • 10 search examples are provided. • The last 10 searches are saved. Filter Distance Band Service Sort by Distance Frequency Band Tone Call Service Bearing Country Settings Location titles Locator (IO91VW) Lat Lon (52.6579 1.7160) Text (East) Short Text (E) Degrees (90°) Theme Light or Dark Distance Units (Miles or km) Menu App name version and build Current location and name Settings About Add repeater Feedback via Email Privacy Policy Supported Languages ca, cs_CZ da,de en, en_GB, en_US, en_AU, en_IE, en_ZA, en_NZ es, es_AR, es_CL fi, fr, fr_CA it_IT nb, no, nl pl, pt se, sv, sk RepeaterBook will always be free. 73 Garrett KD6KPC and Nicolas M1HOG Copyright 2011-2026 RepeaterBook.com & ZBM2.com Terms of Use (EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Thread Length Calculator
This free tool helps leatherworkers accurately calculate the thread length required for their projects. It accounts for the number of holes, stitching length, and leather thickness, ensuring you always have enough material.
- Thread length calculation
- Supports any number of holes
- Accounts for stitching length
- Considers leather thickness
- Free to use
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Never be caught short again! Thread length calculator for All Leatherworkers! A Free and simple way to calculate the thread length needed for any number of holes, length of stitching or thickness of leather. No In App Purchases
Screenshots
Verdict
The clearest difference is rating: Thread Length Calculator at 5.0 against RepeaterBook's 4.2. Thread Length Calculator also leads on in-app purchases (none vs 1) and review sentiment (100% vs 67%). RepeaterBook's advantage is ratings volume (246 vs 3). On price, update cadence, ads and monetization model 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. RepeaterBook sells 1 in-app purchase, starting at $14.99 per year. Thread Length Calculator asks for nothing beyond the download.
Thread Length Calculator holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: RepeaterBook has 246 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 67% of RepeaterBook's written reviews are positive against 100% of Thread Length Calculator's.
RepeaterBook ships an update every 3 weeks, Thread Length Calculator every 10 days. The most recent releases landed on October 19, 2026 and September 30, 2026 respectively.
| Parameter | RepeaterBook | Thread Length Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (246 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 67.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 246 — better | 3 |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 50 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Nicolas Associates Ltd | Nigel Armitage |
Customer experience
RepeaterBook
Thread Length Calculator
Bugs and requests
RepeaterBook
Reported bugs
11 issues- Location services showing repeaters hundreds of miles away
- App not displaying any repeaters despite correct filters
- iOS version showing incorrect frequency data
- Recent update losing user data and settings
- Location feature not finding nearby repeaters
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- iPad compatibility issues with latest version
- 2-meter repeaters not showing in filtered results
- Repeater information not loading properly
- App crashes or becomes unresponsive
- Website login issues not addressed in app
- Feedback submission disabled in application
Requested features
16 requests- Map display of repeater locations
- Field name labels for repeater details
- Coverage range information for repeaters
- GMRS channel display alongside frequency
- Dark mode support
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- Ability to edit user location manually
- Link to full website listings from app
- Better DMR repeater information
- Club repeater highlighting
- APRS filter option
- Wires-X filter option
- Copy and paste functionality
- Watch interface support
- Ability to add custom repeaters
- Offline map support
- Call sign validation for international prefixes
Thread Length Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
RepeaterBook
- Unlimited Access3 Days trial$14.991 Year
Thread Length Calculator
No in-app purchases
