Comparison

Positional Encoding vs Circle Calculator

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

Head to head
About

Positional Encoding

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This is an educational App for readers interested in the sin/cos encoding of the token positions in large language models (LLM). Play with this App to acquire a deeper understanding of the positional encoder as it was described in the famous *Attention is All You Need* paper. In particular the App shows how the correlation between two positional vectors depends only on the distance between the corresponding two integer position.

About

Circle Calculator

Features
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Enter one value and instantly calculate radius, diameter, circumference and area. The live measured diagram updates with your inputs, while formula explanations help you understand the result. CIRCLE AND GEOMETRY TOOLS โ€ข Circle, arc, sector, segment, chord and annulus โ€ข Polygon, triangle, sphere and cylinder measurements โ€ข Unit, angle and precision controls WORKSHOP PROBLEM SOLVING โ€ข Bolt Circle (PCD) with X/Y drill coordinates โ€ข Offline DN/NPS pipe schedule dimensions and weights โ€ข Metal stock weight before cutting โ€ข Cone flat patterns and pipe templates SAVE AND EXPORT Keep calculation history and favourites on your device. Eligible Pro workflows create PDF, CSV and DXF outputs for professional work. OFFLINE-READY CORE Core calculations and bundled pipe charts work without an internet connection. Purchases, advertising, support links and sharing can require a connection. FREE AND PRO Existing free calculators remain available. Pro adds selected workshop exports, advanced workflows, expanded history and an ad-free experience. The App Store shows current plans, trials and local prices before purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Positional Encoding2 screens
Circle Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Positional Encoding at none against Circle Calculator's 7. Positional Encoding also leads on ads (none vs shown). Circle Calculator's advantage is iOS requirement (13.0 vs 18.5). On price, update cadence and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Circle Calculator sells 7 in-app purchases, starting at $1.99 per 7 days. Positional Encoding asks for nothing beyond the download.

UpkeepUpdate frequency

Positional Encoding ships an update monthly, Circle Calculator every 5 weeks. The most recent releases landed on September 26, 2026 and September 30, 2026 respectively.

Scorecard3 real differences ยท 3 level
Positional Encoding versus Circle Calculator: the parameters behind the verdict, then further details
ParameterPositional EncodingCircle Calculator
PriceFreeFree
Update frequencyMonthly โ€” betterEvery 5 weeks
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS18.513.0 โ€” better
Further details โ€” not scored
Size2 MB72 MB
Age rating4+4+
Developercarl nohreAHMET DEMIR

In-app purchases

None

Positional Encoding

No in-app purchases

7 purchases

Circle Calculator

Subscriptions6
  • Circle Pro Weekly7 Days trial$1.997 Days
  • Circle Pro Weekly7 Days trial$3.997 Days
  • Circle Pro Monthly7 Days trial$3.991 Month
Show 3 more
  • Circle Pro Monthly7 Days trial$7.991 Month
  • Circle Pro Annual14 Days trial$24.991 Year
  • Circle Pro Annual14 Days trial$49.991 Year
One-time1
  • Circle Calculator Pro Lifetime$49.99

Questions

Is Positional Encoding free?
Positional Encoding is free to download, with no in-app purchases.
Is Circle Calculator free?
Circle Calculator is free to download, with in-app purchases available.
Do Positional Encoding or Circle Calculator have ads?
Circle Calculator shows ads; Positional Encoding does not.
Which is updated more often, Positional Encoding or Circle Calculator?
Positional Encoding ships an update monthly, and Circle Calculator every 5 weeks. Most recently, Positional Encoding was updated on September 26, 2026 and Circle Calculator on September 30, 2026.

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