TreeKit vs Unitap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TreeKit
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1. Tree-structured management with unlimited nested levels, making complex information clear at a glance 2. Seamless switching between mobile and web, with real-time sync across multiple devices 3. One-click share link generation for real-time viewing and editing by collaborators 4. Emoji support to make notes more lively and engaging 5. Clean and elegant interface design focused on content creation 6. Independent web interface
Unitap
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Type one number. Read them all. Unitap converts a value into every unit of the same category at once. There is no "from" and "to" to pick — the moment you type, the answer is already on screen. ■ Pin what you use Tap the star and that unit stays right under the input field in large type. From the second time on, you just type the number: cups → ml and tablespoons for cooking, inches → cm for DIY. It becomes your own conversion sheet. ■ 14 categories, about 195 units Length, mass, temperature, area, volume, speed, duration, data, pressure, energy, power, angle, fuel efficiency and number bases (2 / 8 / 10 / 16). Traditional Japanese units (tsubo, jo, go, sho, monme, shaku and more) are included. ■ Conversions work offline, no account Every conversion happens on your device, so it works the same in airplane mode or underground (only the ad banner uses the network). No sign-up, no login. ■ Made for moments like these - A recipe says "1 cup" and "350°F" and you think in ml and °C - Overseas listings and drawings use inches, lb and sq ft - You need GB vs GiB, or kB vs KiB, converted correctly - Imperial units slow you down every time ■ How to use 1. Pick a category from the chips at the top 2. Type a value (tap the unit button to change the input unit) 3. Tap a row to copy the value, tap the star to pin it Numbers are formatted with grouping separators and sensible significant digits, and unit names follow your device language.
Screenshots
Verdict
The clearest difference is price: Unitap at Free against TreeKit's $0.99. Unitap also leads on in-app purchases (none vs 1). TreeKit's advantage is iOS requirement (13.0 vs 17.0). On 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
Unitap is free to download; TreeKit costs $0.99 up front. TreeKit sells 1 one-off in-app purchase. Unitap asks for nothing beyond the download.
| Parameter | TreeKit | Unitap |
|---|---|---|
| Price | $0.99 | Free — better |
| Update frequency | Every 6 weeks | — |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 17 MB | 8 MB |
| Age rating | 9+ | 4+ |
| Developer | KANG LI | Daisuke Minami |
In-app purchases
TreeKit
- treeit_lifetime$0.99
Unitap
No in-app purchases









