KujiraTimer vs Simple Study Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KujiraTimer
Effortlessly track your time spent on various activities like learning or exercise. Start a timer with a single tap and log your activity afterward. Review your progress with daily, weekly, monthly, and yearly summary graphs.
- Activity time tracking
- Pause timer functionality
- Daily/weekly/monthly/yearly summaries
- Quick start alarm timer
- Simple interface
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Kujira means "whale" in Japanese. KujiraTimer is a simple and easy-to-use time tracking app that records time for your activities. For example, learning, exercise, reading, etc. When you want to start learning, just press the start button on the screen without specifying what subject to start. After finishing the learning, specify that subject and save it. Then, while waiting for a cup ramen with an alarm timer at a break time, you will check the achievement status of this week. You can do such a usage. - Time Tracking + Just press the start button. Then specify activity after finishing timer + pause + dayly/weekly/monthly/yearly summary graph - Alarm Timer + Quick start. It is a simple kitchen timer
Simple Study Log
This app helps you start studying faster with a minimalist timer and stopwatch. Track your sessions, view progress with charts, and utilize widgets and Siri for seamless integration into your routine. An optional premium upgrade removes ads and adds a calendar heatmap.
- Minimalist study timer
- Stopwatch mode
- Widget support
- Lock Screen & Dynamic Island integration
- Siri & Shortcuts automation
- iCloud sync
- Progress charts and stats
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Study Log is a minimalist study timer built for one thing: helping you start studying faster. No subjects, no tags, no setup. Just tap Start. Use Timer or Stopwatch, stay focused with a clear, easy-to-read running screen, and save your session in seconds. Then review your effort with charts and stats. Made to fit your routine ・Start, pause, resume, and save from Widgets ・Track sessions on the Lock Screen & Dynamic Island with Live Activities ・Use Siri & Shortcuts to automate actions ・Keep your records safe with iCloud sync Key features (Free) ・Timer & Stopwatch modes ・Clean session history ・Weekly/monthly graphs + averages ・iCloud sync across devices Optional in-app purchase (Premium) ・Remove ads ・Calendar heatmap view (visualize study density) Start faster. Stay consistent. See progress. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Simple Study Log at 100% against KujiraTimer's 25%. KujiraTimer's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement 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. Simple Study Log sells 1 in-app purchase, starting at $0.99 per month. KujiraTimer asks for nothing beyond the download.
| Parameter | KujiraTimer | Simple Study Log |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 25.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | — |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.1 | 18.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Takashi Shinyashiki | ishida yuto |
Customer experience
KujiraTimer
Simple Study Log
In-app purchases
KujiraTimer
No in-app purchases
Simple Study Log
- Premium Plan7 Days trial$0.991 Month
