Comparison

Arithmetic Worksheet vs Nature Almanac AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Arithmetic Worksheet

Features
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1 Select the respondent, and also edit or add user information. 2 Set question types, including addition, subtraction, multiplication, division and mixing. 3 Set the number of questions, as 5, 10, or 20. 4 Complete the questions. 5 Click "Home" to return and save the results to the local album. 6 Please share your learning results with parents.

About

Nature Almanac AI

Identify plants, insects, and animals using AI and build a personal nature journal. Learn scientific details, nature stories, and English vocabulary with each discovery. Offers privacy-focused on-device storage and optional cloud sync.

Highlights
  • AI species identification
  • Personal nature almanac
  • Scientific details and facts
  • English vocabulary learning
  • Privacy-focused on-device storage
  • Optional cloud sync
Features
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Take Nature Almanac outdoors and turn every observation into a discovery you can keep. Capture a photo or choose one from your library. AI suggests possible species and explains the visible clues behind each suggestion. After you confirm a candidate, the discovery is saved to your private almanac. Continue with scientific details, nature stories, and English vocabulary, turning one observation into an ongoing learning experience. PHOTO DISCOVERY • Take a photo or choose one from your library • Review multiple candidates, confidence levels, and visible clues • Use supported macro lenses and adjust zoom from 1x to 5x, depending on your device • Send in-app feedback when an AI suggestion needs correction BUILD YOUR OWN NATURE ALMANAC • Save photos, discovery time, location, weather, and notes • Revisit complete photos displayed in their natural aspect ratio • Organize plants, insects, animals, and other discoveries • Explore ecological relationships between species KEEP LEARNING • Read about classification, size, habitat, features, and interesting facts • Enjoy nature stories and cultural context • Learn English names, vocabulary, pronunciation, and example sentences • Tap names and vocabulary to hear them spoken PRIVACY BY DESIGN • Discoveries and photos are stored in the app's private on-device directory by default • AI identification receives only a compressed image copy after privacy metadata is removed • Premium private sync uses your own iCloud CloudKit private database • No Nature Almanac account is required to begin exploring The free version includes limited successful AI identifications per UTC calendar month. Premium unlocks unlimited AI identification, private cloud sync, and other advanced features. Subscriptions are managed through your Apple ID, and purchases can be restored in the app. Identification results may be inaccurate. Do not rely on this app alone to decide whether an unknown organism is safe to touch, eat, or use for medical purposes. Keep a respectful distance and follow local guidance while observing nature. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Arithmetic Worksheet4 screens
Nature Almanac AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Arithmetic Worksheet at none against Nature Almanac AI's 3. Arithmetic Worksheet also leads on iOS requirement (12.0 vs 15.0). Nature Almanac AI's advantage is update cadence (every 2 weeks vs every 4 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Nature Almanac AI sells 3 in-app purchases, starting at $4.99 per month. Arithmetic Worksheet asks for nothing beyond the download.

UpkeepUpdate frequency

Arithmetic Worksheet ships an update every 4 months, Nature Almanac AI every 2 weeks. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

Scorecard3 real differences · 7 level
Arithmetic Worksheet versus Nature Almanac AI: the parameters behind the verdict, then further details
ParameterArithmetic WorksheetNature Almanac AI
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size87 MB68 MB
Age rating4+4+
DeveloperYan Xu帅 王

In-app purchases

None

Arithmetic Worksheet

No in-app purchases

3 purchases

Nature Almanac AI

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Annual$24.991 Year
One-time1
  • Premium Lifetime$29.99

Questions

Is Arithmetic Worksheet free?
Arithmetic Worksheet is free to download, with no in-app purchases.
Is Nature Almanac AI free?
Nature Almanac AI is free to download, with in-app purchases available.
Do Arithmetic Worksheet or Nature Almanac AI have ads?
Neither Arithmetic Worksheet nor Nature Almanac AI shows ads.
Which is updated more often, Arithmetic Worksheet or Nature Almanac AI?
Arithmetic Worksheet ships an update every 4 months, and Nature Almanac AI every 2 weeks. Most recently, Arithmetic Worksheet was updated on November 4, 2026 and Nature Almanac AI on November 8, 2026.

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