Comparison

Calliope mini vs KNOWBODY

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

Head to head
About

Calliope mini

This app allows users to program a micro-controller to build robots, transmit messages, and make things move. It features LEDs, buttons, sensors, and Bluetooth for creative coding projects.

Highlights
  • Program micro-controller
  • Build robots
  • Transmit messages
  • Control LEDs
  • Use motion sensor
  • Bluetooth communication
Features
Read full description

With Calliope mini you have countless creative options right at your fingertips. You want to build a robot or transmit messages? With just a few clicks you can create a program for the controller and make things move. Besides 25 red plus three RGB-LEDs and two programmable buttons the board contains a combined position sensor with motion sensor and compass as well as a bluetooth module that allows the Calliope mini to communicate with other devices.

About

KNOWBODY

This app provides sexual education resources for secondary schools, suitable for all German states from 6th grade. Teachers and interested individuals can test it for free for 8 days.

Highlights
  • Sexual education content
  • Suitable for secondary schools (6th grade+)
  • Bundensland-independent
  • Free 8-day trial for teachers
  • Login with Univention (Bremen)
Features
Read full description

KNOWBODY ist eine App für sexuelle Bildung im Schulunterricht. Eingesetzt werden kann sie bundeslandunabhängig an allen weiterführenden Schulen ab der 6. Klasse. Für Schulen und Lehrkräfte im Bundesland Bremen steht sie ab sofort kostenfrei und für den Login mit Univention zur Verfügung. Lehrkräfte und weitere interessierte Personen können die App kostenfrei 8 Tage lang testen. Bei Rückfragen zur App-Nutzung stehen wir unter mail@knowbody.app zur Verfügung.

Screenshots

Calliope mini4 screens
KNOWBODY4 screens

Verdict

The call

The clearest difference is review sentiment: KNOWBODY at 67% against Calliope mini's 26%. KNOWBODY also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (13.0 vs 15.0). Calliope mini's advantage is in-app purchases (none vs 1). 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. KNOWBODY sells 1 one-off in-app purchase. Calliope mini asks for nothing beyond the download.

UpkeepUpdate frequency

Calliope mini ships an update every 3 months, KNOWBODY every 3 weeks. The most recent releases landed on November 2, 2026 and November 13, 2026 respectively.

Scorecard5 real differences · 3 level
Calliope mini versus KNOWBODY: the parameters behind the verdict, then further details
ParameterCalliope miniKNOWBODY
PriceFreeFree
Positive reviews25.6% of reviews66.7% of reviews — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size37 MB138 MB
Age rating4+12+
DeveloperCalliope gGmbHKNOWBODY UG (haftungsbeschränkt)

Customer experience

Calliope mini

Written reviews39 reviews
Positive25.6%
Neutral12.8%
Negative61.5%

KNOWBODY

Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

Calliope mini

No in-app purchases

1 purchases

KNOWBODY

One-time1
  • Familienlizenz$12.99

Questions

Is Calliope mini free?
Calliope mini is free to download, with no in-app purchases.
Is KNOWBODY free?
KNOWBODY is free to download, with in-app purchases available.
Do Calliope mini or KNOWBODY have ads?
Neither Calliope mini nor KNOWBODY shows ads.
Which is updated more often, Calliope mini or KNOWBODY?
Calliope mini ships an update every 3 months, and KNOWBODY every 3 weeks. Most recently, Calliope mini was updated on November 2, 2026 and KNOWBODY on November 13, 2026.

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