Reading Time vs CLEO.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Reading Time
This app helps readers estimate the remaining effort to finish a book based on their actual reading habits. It's designed for those who read in short, irregular sessions and want a realistic understanding of a book's time commitment.
- Estimate remaining book effort
- Log reading sessions
- Learn from reading pace
- Realistic time commitment assessment
- Track progress at your own pace
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Find out how long it will take to finish your book. Simply log your reading sessions. Reading Time is built for readers who care about finishing important books, but read in short, irregular sessions. Instead of pages, streak pressure, or generic estimates, it shows the remaining effort for each book based on how you actually read. This lets you decide, realistically, whether a book fits into your life right now. Start reading and stop when you’re done. Reading Time learns from your sessions and shows how much effort is left for each book at your own pace. If you’ve ever thought “I want to read this, but I don’t know if I have time,” or found yourself starting books and never finishing them, or felt put off by apps that expect daily consistency, Reading Time was made for you.
CLEO.
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Are you a book lover always on the hunt for your next great read? Welcome to Cleo - your very own social network dedicated to sharing the love for literature! POST AND TAG YOUR BOOKS: Snap a photo of your current read and share it on your profile. You can tag each book in your posts, making it easier for others to discover and delve into your reading world. DISCOVER INSPIRING PROFILES: Dive into the profiles of your fellow bookworms, browse their book photos, tags, and learn more about their literary tastes. Expand your reading horizon with every profile you explore. EXCHANGE RECOMMENDATIONS: Make reading more interactive! Recommend books to other users based on their preferences and posts. Receive book suggestions from a community of readers who know and love books just as much as you do. JOIN OUR COMMUNITY: Cleo is a haven for all who find solace in the written word. Whether you're a sci-fi fanatic, a historical fiction enthusiast, a non-fiction nut, or a mystery addict - Cleo is the place to celebrate and share your love for books. Join us in our mission to make reading more social, interactive, and fun. Download Cleo today and become part of our passionate community of book lovers!
Screenshots
Verdict
The clearest difference is in-app purchases: CLEO. at none against Reading Time's 2. CLEO. also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (14.0.0 vs 26.0). 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
Both are free to download. Reading Time sells 2 one-off in-app purchases. CLEO. asks for nothing beyond the download.
Reading Time ships an update every 3 weeks, CLEO. every 3 days. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.
| Parameter | Reading Time | CLEO. |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (24 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 14.0.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | UX First | Rosa Kalaidjian |
In-app purchases
Reading Time
- Unlock forever$11.99
- Unlock forever (Special offer)$11.99
CLEO.
No in-app purchases
