Comparison

Trigonometry calc vs Biolingo Plantangle

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

Head to head
About

Trigonometry calc

Calculate side lengths and angles in right-angled triangles using Pythagorean theorem and trigonometry functions. Learn basic trigonometry concepts. An optional premium version removes ads and unlocks a general triangle calculator.

Highlights
  • Calculate side lengths
  • Calculate angles
  • Pythagorean Theorem
  • Trigonometry functions
  • Learn simple trigonometry
  • General triangle calculator (premium)
Features
Read full description

Use Trigonometry Calc to calculate sidelengths and angles in the right angled triangle. By the help of Pythagorean Theorem and some trigonometry functions you can in this app calculate side lengths and angles in any right angled triangle. Learn simple trigonometry. •Math •Trigonometry •Pythagorean Theorem Trigonometry Premium Go ad-free forever and unlock the advanced General Triangle Calculator (SAS/SSA/ASA). Solve any triangle, not just right triangles

About

Biolingo Plantangle

Features
Read full description

Plantangle creates a bridge between human and plant bioelectric activity, allowing you to explore the fascinating world of plant electrophysiology. ENTANGLE MODE Measure your correlation with plant bioelectric signals using DTW (Dynamic Time Warping) analysis. Your phone's accelerometer, light sensor, and microphone feed into machine learning models that predict your emotional state - happiness and energy levels. Watch in real-time as your movements and environment correlate with the plant's electrical responses. MONITOR MODE Watch live plant voltage signals streamed directly from ESP32-based sensors. Visualize the plant's electrical activity with a beautiful real-time chart. Perfect for researchers and curious minds who want to observe raw bioelectric data. EXHIBIT MODE Connect to multiple plant detection systems simultaneously: - Touch Detection - See when visitors touch the plant - Sound Detection - Watch plants respond to singing bowls - Light Detection - Observe reactions to lamp changes Designed for the Living Synthesis exhibition, this mode lets you peek at all three plant response monitors from your phone. DATA REPOSITORY Export your session data as CSV files for further analysis. Every entanglement session is recorded with timestamps, sensor readings, voltage measurements, and predictions. Perfect for research and experimentation. THE SCIENCE Plants generate bioelectric signals through ion channels in their cell membranes. These signals change in response to touch, sound, light, and even human presence. Plantangle uses machine learning trained on real biometric data to detect correlations between your activity and the plant's responses. REQUIREMENTS - ESP32-based plant sensor with AD8232 bioelectric amplifier - Local WiFi network (plant sensors connect via WebSocket) - The app works with the Living Synthesis exhibition hardware RESEARCH BACKGROUND Developed in collaboration with research at MIT Center for Collective Intelligence and University of Cologne, building on work in Collaborative Innovation Networks (COINs) and swarm creativity. Part of ongoing research into plant sentience, bioelectric communication, and human-plant interaction. ABOUT LIVING SYNTHESIS Plantangle is the companion app for the Living Synthesis exhibition, touring Swiss museums in 2026. The exhibition explores the boundary between living and artificial systems through interactive plant bioelectric installations. Perfect for: - Plant enthusiasts curious about bioelectricity - Biohackers and DIY scientists - Science educators and museums - Exhibition and installation artists - Researchers studying plant behavior - Anyone who wants to connect more deeply with nature

Screenshots

Trigonometry calc4 screens
Biolingo Plantangle3 screens

Verdict

The call

The clearest difference is in-app purchases: Biolingo Plantangle at none against Trigonometry calc's 1. Biolingo Plantangle also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). On price 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. Trigonometry calc sells 1 one-off in-app purchase. Biolingo Plantangle asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Trigonometry calc versus Biolingo Plantangle: the parameters behind the verdict, then further details
ParameterTrigonometry calcBiolingo Plantangle
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 months—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size10 MB22 MB
Age rating4+4+
DeveloperBo KalvslundGalaxyadvisors AG

In-app purchases

1 purchases

Trigonometry calc

One-time1
  • Premium$0.99
None

Biolingo Plantangle

No in-app purchases

Questions

Is Trigonometry calc free?
Trigonometry calc is free to download, with in-app purchases available.
Is Biolingo Plantangle free?
Biolingo Plantangle is free to download, with no in-app purchases.
Do Trigonometry calc or Biolingo Plantangle have ads?
Trigonometry calc shows ads; Biolingo Plantangle does not.

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