Pinu vs Potential Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pinu
This app transforms language learning into a fun, game-like experience. It focuses on interactive lessons and real-world speaking practice to build confidence. Learn a new language step-by-step with a supportive virtual buddy.
- Gamified learning journey
- Interactive map-based lessons
- Virtual language buddy support
- Real-world speaking practice
- Instant feedback on exercises
- Progressive language acquisition
Read full descriptionHide full description
Meet Pinu — your language buddy. Pinu turns language learning into an engaging, game-inspired journey. Instead of tedious memorization and endless vocabulary lists, you learn by playing, practicing, and building confidence step by step. Whether you’re preparing for a trip, settling into a new place, or simply challenging yourself, Pinu makes learning a new language feel approachable and rewarding. Why Pinu? - Gamified Learning Explore interactive lessons through a map-based journey. Each lesson feels like a small quest, keeping you motivated as you progress. - Your Language Buddy Pinu isn’t just a mascot — he’s there to celebrate your wins and support you along the way. - Real-World Speaking Practice Practice everyday scenarios and build the confidence to speak naturally from day one. - Instant Feedback Get immediate guidance and positive reinforcement after every exercise. - More Languages Ahead Pinu is built to grow with new languages and learning experiences continuously on the way. Start your language journey with Pinu today!
Potential Converter
This tool helps electrochemists, researchers, and students quickly convert measured potentials between various reference electrode scales. It supports 19 common electrodes and provides educational information, working offline with an intuitive interface.
- Convert between 19 common reference electrodes
- Instant, real-time conversions
- Supports SHE, Ag/AgCl, SCE, MSE, and more
- Educational information on reference electrodes
- Clean, intuitive interface
- Offline functionality
- Copy results with one tap
Read full descriptionHide full description
Potential Converter is an essential tool for electrochemists, researchers, and students who need to convert the potential between different reference electrodes. Quickly and accurately convert measured potentials between different reference electrode scales. FEATURES: • Convert between 19 common reference electrodes • Instant, real-time conversions • Support for SHE, Ag/AgCl (various concentrations), SCE, MSE, and more • Educational information about reference electrodes • Clean, intuitive interface • Works offline - no internet required • Copy results with one tap SUPPORTED REFERENCE ELECTRODES: - Standard Hydrogen Electrode (SHE) - Normal Hydrogen Electrode (NHE) - Silver/Silver Chloride (Ag/AgCl) - Multiple KCl concentrations - Saturated Calomel Electrode (SCE) - Calomel Electrodes - Various concentrations - Mercury/Mercurous Sulfate (MSE) - Mercury/Mercuric Oxide (Hg/HgO) - Silver/Silver Sulfate - Copper/Copper Sulfate Perfect for: • Electrochemistry research • Corrosion studies • Laboratory work • Academic studies • Quality control All standard potentials are referenced at 25°C.
Screenshots
Verdict
The clearest difference is rating: Potential Converter at 5.0 against Pinu's 4.2. Potential Converter also leads on in-app purchases (none vs 6). Pinu's advantage is update cadence (every 10 days vs every 6 months) and ratings volume (43 vs 1). On price, ads and monetization model 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
Both are free to download. Pinu sells 6 in-app purchases, starting at $4.99 per 7 days. Potential Converter asks for nothing beyond the download.
Potential Converter holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Pinu has 43 ratings behind it against 1, so its average is the more settled of the two.
Pinu ships an update every 10 days, Potential Converter every 6 months. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.
| Parameter | Pinu | Potential Converter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (43 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 52.6% of reviews | — |
| Number of ratings | 43 — better | 1 |
| Update frequency | Every 10 days — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Best chart rank | #68 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17 |
| Further details — not scored | ||
| Size | 142 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | LEAF BOAT TECHNOLOGY LIMITED | Dianzhao Lin |
Customer experience
Pinu
Potential Converter
In-app purchases
Pinu
- Pinu - Languages Learning$4.997 Days
- Pinu3 Days trial$15.991 Month
- Pinu$15.991 Month
Show 2 moreShow fewer
- Pinu3 Days trial$99.991 Year
- Pinu$99.991 Year
- Avatar Outfit Set$1.99
Potential Converter
No in-app purchases









