Compression Calculator vs Auto Lube Specs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Compression Calculator
Calculate engine compression, displacement, and piston speed using specific Honda engine parameters. Select engine components to get precise calculations for your automotive needs.
- Engine compression calculation
- Displacement calculation
- Piston speed calculation
- Honda B, D, H/F, K-Series engine support
- Component selection for custom calculations
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Engine Compression Calculator which contains B-, D-, H/F- and K-Series Honda™ Engine parameters. Select your engine components and calculate your engine compression, displacement, pistons speed...etc. The trademark "Honda" and any other product names, service names or logos of Honda used, quoted and/or referenced in this app are trademarks or registered trademarks of Honda or any of its affiliates. Other product names and/or company names used in the app may be protected as their trademarks and/or trade names.
Auto Lube Specs
Access a comprehensive database of lubrication specifications for vehicles from the last 25 years. Find oil capacities, weights, drain plug torques, and fluid types for transmissions and transfer cases. Includes maintenance light reset instructions.
- Lubrication specifications for 25 years
- Oil capacity and weight
- Drain plug torques
- Transmission fluid specifications
- Transfer case fluid specifications
- Maintenance light reset instructions
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Auto Lube Specs contains lubrication specifications for almost the last 25 years, and will continue to add years and vehicles for user convenience. This app contains oil capacity, oil weight, drain plug torques, transmission fluids, transfer case fluids, and maintenance light reset instructions.
Screenshots
Verdict
The clearest difference is review sentiment: Auto Lube Specs at 52% against Compression Calculator's 0%. Auto Lube Specs also leads on rating (4.1 vs 3.0) and ratings volume (82 vs 3). Compression Calculator's advantage is ads (none vs shown) and update cadence (every 9 days vs every 12 months). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Auto Lube Specs holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: Auto Lube Specs has 82 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Compression Calculator's written reviews are positive against 52% of Auto Lube Specs's.
Compression Calculator ships an update every 9 days, Auto Lube Specs every 12 months. The most recent releases landed on September 30, 2026 and October 15, 2026 respectively.
| Parameter | Compression Calculator | Auto Lube Specs |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (3 ratings) | 4.1 (82 ratings) — better |
| Positive reviews | 0.0% of reviews | 52.4% of reviews — better |
| Number of ratings | 3 | 82 — better |
| Update frequency | Every 9 days — better | Every 12 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.4 — better | 17.6 |
| Further details — not scored | ||
| Size | 10 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Peter Linszter | Rafter Circle Dot Development LLC |
Customer experience
Compression Calculator
Auto Lube Specs
Bugs and requests
Compression Calculator
Not enough reviews yet to summarise bugs or requests.
Auto Lube Specs
Reported bugs
20 issues- App refuses to load until opened and closed multiple times
- App opens but won't load unless closed and reopened
- Defaults to liters, needs manual switch to quarts
- App is not updated enough on Apple devices
- Different oil fills for the same vehicle on Android vs. Apple
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- App takes a long time to open, requires multiple close/reopens
- App sometimes won't open at all
- App doesn't work and no updates
- iPhone version doesn't update past 2022
- Android has 2023, iPhone has 2022
- iPhone doesn't have 2023 and 2024
- App hasn't been updated in over a year
- App only goes up to 2022 on iPhone
- App only goes up to 2019 on iPhone and iPad
- App only shows up to 2019
- Cannot update the app, only goes up to 2019
- Apple SE phone does not have 2022 specs, friend's Droid does
- Incorrect specs
- Incomplete coverage
- Half of the vehicles selected give no information
Requested features
17 requests- Update for newer vehicle models (2023, 2024, 2025+)
- Add older car models (prior to 2000)
- Add oil filter information
- VIN scanner option
- Update for newer vehicles on Apple devices
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- Include 2023 and 2024 model years on iPhone
- Update app to cover 2020 - current 2023 vehicles
- Update for iPhone and iPad to show newer vehicles
- Update app to show vehicles beyond 2019
- Update app to show vehicles beyond 2022
- Add 2023 and 2024 year vehicles
- Add 2025+ models and some 2000s under models
- Update for newer vehicles
- Update app with cars until 2023 and faster opening
- Make older year cars an option
- Update for 2022 vehicles
- Update for newer years
In-app purchases
Compression Calculator
No in-app purchases
Auto Lube Specs
No in-app purchases
Questions
Is Compression Calculator free?
Is Auto Lube Specs free?
Which has better reviews, Compression Calculator or Auto Lube Specs?
Do Compression Calculator or Auto Lube Specs have ads?
Which is updated more often, Compression Calculator or Auto Lube Specs?
Other comparisons
