A+ Spelling vs CloudLabs Dalton’s Law
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A+ Spelling
Practice spelling with custom lists or pre-made ones. Resume interrupted tests and focus on missed words. Record your own words and share lists with others.
- Customizable spelling lists
- Predefined word lists
- Resume interrupted tests
- Track missed words
- Record and share custom words
- Share lists with friends
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A+ Spelling provides an easy way to practice weekly spelling lists or brush up using predefined spelling lists. If a test is Interrupted, it can be resumed at a later time. A list of words missed on previous tests is available to help focus on more troublesome words. Record your own words, create word lists and share with friends and classmates. A large selection of pre-recorded words is available for download.
CloudLabs Dalton’s Law
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In this simulator, you can use Dalton's law (partial pressure law) to determine the pressure that an ignition chamber will have in which two gases are mixed. In the simulator you will find two cylinders with gas, analog and digital pressure gauges, a thermometer and a chamber in which the gases will be mixed.
Screenshots
Verdict
The clearest difference is price: CloudLabs Dalton’s Law at Free against A+ Spelling's $0.99. CloudLabs Dalton’s Law also leads on iOS requirement (9.0 vs 15.0). A+ Spelling's advantage is update cadence (every 6 weeks vs every 29 months). 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
CloudLabs Dalton’s Law is free to download; A+ Spelling costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
A+ Spelling ships an update every 6 weeks, CloudLabs Dalton’s Law every 29 months. The most recent releases landed on September 22, 2026 and May 16, 2026 respectively.
| Parameter | A+ Spelling | CloudLabs Dalton’s Law |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks — better | Every 29 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Joe Blough | Jiovany Orozco |
In-app purchases
A+ Spelling
No in-app purchases
CloudLabs Dalton’s Law
No in-app purchases
Questions
Is A+ Spelling free?
Is CloudLabs Dalton’s Law free?
Do A+ Spelling or CloudLabs Dalton’s Law have ads?
Which is updated more often, A+ Spelling or CloudLabs Dalton’s Law?
Other comparisons
