Percentage vs Carburetor CFM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Percentage
This utility calculates proportions between two values expressed as percentages. It allows you to find any unknown value in a percentage equation, including percent increases or decreases.
- Calculate any percentage value
- Find percent increase
- Find percent decrease
- Supports iPhone and iPad
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This percentage calculator helps to find the proportion between two values expressed in percent. You can calculate any value in the percentage equation, just fix the one you want to have calculated. You can choose to calculate the percent increase or decrease between two values as well.
Carburetor CFM
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With our carburetor CFM calculator, we will prevent you from ruining your engine.
Screenshots
Verdict
The clearest difference is price: Carburetor CFM at Free against Percentage's $0.99. Carburetor CFM also leads on update cadence (every 6 days vs every 14 months) and iOS requirement (13.0 vs 15.6). On ads, 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
Carburetor CFM is free to download; Percentage costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Percentage ships an update every 14 months, Carburetor CFM every 6 days. The most recent releases landed on September 20, 2026 and December 3, 2025 respectively.
| Parameter | Percentage | Carburetor CFM |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 14 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Piet Jonas | STAGE CODING, Travnik |
In-app purchases
Percentage
No in-app purchases
Carburetor CFM
No in-app purchases
Questions
Is Percentage free?
Is Carburetor CFM free?
Do Percentage or Carburetor CFM have ads?
Which is updated more often, Percentage or Carburetor CFM?
Other comparisons
