레츠톡 vs Diffu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
레츠톡
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AI와 대화를 통한 회고를 진행할 수 있는 앱
Diffu
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Is there something you want to say but keep holding back? It won’t stay forever, so you can be a little more honest. Diffu is a public feed where you can put what you want to say into words and discover what others have shared. Start with Today’s Question when you need a prompt, or simply write whatever you want to say. A short sentence or a longer entry—either is welcome. Posts stay on the feed for a set amount of time and disappear when their public time ends. Your own posts remain available in your Records. ■ Write Freely What do you want to say right now? Share anything about daily life, work or school, love, family, relationships, interests, or whatever else is on your mind. ■ Today’s Question A new question opens every day. When you’re not sure what to write, start with a single sentence inspired by Today’s Question. ■ React and Send a Feeling React to other people’s posts to show that you relate. Send a Feeling lets you anonymously share a feeling and a short message. Depending on a post’s settings, reactions and feelings may extend its public time. ■ Records Calendar Days when you write freely or answer Today’s Question are marked on your calendar. See the days you recorded this month and how long you’ve kept your rhythm going. ■ Record Badges Your activities and small milestones in Diffu become badges, such as First Flame, Seven-Day Rhythm, and Flow of Records. Choose a featured badge to express yourself. ■ Posts Leave the Feed When Public Time Ends Diffu is neither a social network where everything stays public forever nor a private journal only you can see. It is a place where you can put your words out there for a while before they leave the public feed. For the words you’ve been holding back, let them out on Diffu—where they won’t stay forever. Privacy Policy: https://diffu.app/en/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: 레츠톡 at none against Diffu's 6. 레츠톡 also leads on ads (none vs shown). Diffu's advantage is device support (3 vs 1). On price 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. Diffu sells 6 in-app purchases, starting at $2.99 per month. 레츠톡 asks for nothing beyond the download.
| Parameter | 레츠톡 | Diffu |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 73 MB |
| Age rating | 4+ | 17+ |
| Developer | MINSEOk KIM | Jeong-Hwan Jang |
In-app purchases
레츠톡
No in-app purchases
Diffu
- Diffu Premium$2.991 Month
- Diffu Premium$29.991 Year
- 100 엠버$0.49
- 500 엠버$2.99
- 1000 엠버$6.99
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- 3000 엠버$19.99









