ColdTempCorr vs TopLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ColdTempCorr
This professional aviation tool helps pilots calculate necessary cold temperature corrections for flight operations. It ensures compliance with aviation regulations by providing accurate altitude adjustments in cold weather, enhancing safety and efficiency.
- Cold temperature correction calculations
- ICAO PANS-OPS and FAA TERPS compliance
- Advanced atmospheric calculations
- Constant Descent Final Approach planning
- Air data conversions
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Cold Temperature Corrections – Professional Aviation Tool When outside air temperature is colder than ISA, an aircraft’s true altitude is lower than the indicated altitude—reducing terrain and obstacle clearance. To mitigate this risk, regulations require pilots to apply cold temperature corrections. The Cold Temp App streamlines this process with fast, accurate calculations based on the ICAO Cold Temperature Correction Table or precise engineering equations, ensuring compliance with ICAO PANS-OPS and FAA TERPS. In its latest revision, the app has been enhanced with additional modules: • ATMOS Module – Advanced atmospheric calculations, ISA parameters, and air data conversions. • CDFA Module – Constant Descent Final Approach planning with integrated cold temperature corrections. With expanded capabilities, regulatory compliance, and operational accuracy, the Cold Temp App is an essential professional tool for safe and efficient flight operations in cold-weather environments. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
TopLog
Digitize your paper flight logbook with AI. Simply photograph your handwritten entries, and the app automatically extracts all flight details, creating accurate, searchable digital records. Ideal for pilots wanting to back up decades of flying or transition to digital logging.
- AI handwriting recognition
- Automatic flight detail extraction
- Review and confirm data
- Searchable digital flight history
- Digitize paper logbooks
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Turn paper pilot logbook pages into editable digital flight records. TopLog drafts entries from a photo, lets you check each flight, and keeps your flying history organized on iPhone and the web. SCAN AND REVIEW Photograph a paper logbook page. TopLog drafts the dates, aircraft, routes, flight times, landings, and other details it can read. Review and correct each entry before saving. KEEP YOUR HOURS TOGETHER Search your flights, view flight-time totals and aircraft breakdowns, and add new entries manually as you fly. BRING EXISTING RECORDS Import supported CSV, TXT, and Excel logbook files. Review the column mapping, missing information, and possible duplicates before saving. BACK UP YOUR LOGBOOK Export your records as PDF or CSV on a paid plan. Access your logbook on iPhone and the web with the same account. TopLog helps speed up transcription. Always check imported entries and totals against your source records before relying on them. USE TOOLS Like Cold Weather Correction and our Crew Rest Calculator, available offline when you're flying. TopLog Terms of Service: https://www.pilotlogbookai.com/terms Privacy Policy: https://www.pilotlogbookai.com/privacy
Screenshots
Verdict
The clearest difference is review sentiment: TopLog at 100% against ColdTempCorr's 0%. TopLog also leads on update cadence (weekly vs every 4 months). On price, ads, in-app purchases 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. ColdTempCorr sells 2 in-app purchases, starting at $2.99 per 3 months and TopLog sells 3 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.
ColdTempCorr ships an update every 4 months, TopLog weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | ColdTempCorr | TopLog |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (10 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 10 — better |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | AeroKitPro LLC | Clear Signal |
Customer experience
ColdTempCorr
TopLog
In-app purchases
ColdTempCorr
- 3 Months subscription1 Month trial$2.993 Months
- One year subscription1 Month trial$9.991 Year
TopLog
- Logbook Pro - Monthly$19.991 Month
- Logbook AI - Annual$49.991 Year
- Logbook AI Pro - Annual$99.991 Year








