Colog vs Ultraviolet Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Colog
Capture and share everyday moments with close friends and family in private, collaborative reels. This app focuses on genuine connections over public performance, offering an ad-free and follower-count-free experience.
- Capture photos and videos
- Create private rolls for groups
- Organize moments into shared reels
- Invite friends to collaborate
- Ad-free and no follower count
- Build a living archive of life
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colog is a social camera. capture everyday details with the people closest to you. create rolls for friends, roommates, trips, routines, or inside jokes. add photos and videos throughout the day, then revisit the moments as shared reels. colog is built for small circles, not public performance. no follower count. no ads. no polished feed. just the real details that make a day worth remembering. what you can do with colog: • capture photos into private rolls • organize moments into reels • invite friends to view or collaborate on shared rolls • keep up with your community without broadcasting to everyone • build a living archive of everyday life colog is currently invite-only as we gradually open access.
Ultraviolet Chat
Connect with creators, experts, and professionals who share your interests. This community chat platform offers a user-friendly interface for exclusive experiences and knowledge sharing.
- Community chat platform
- Connect with creators
- Exclusive experiences
- Knowledge sharing
- User-friendly interface
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Ultraviolet is a community chat platform designed to bring you closer to creators, experts, and professionals who share your interests and passions. Our user-friendly interface and messaging features make it simple to access exclusive experiences and knowledge in a fun way.
Screenshots
Verdict
The clearest difference is rating: Colog at 5.0 against Ultraviolet Chat's 4.1. Colog also leads on review sentiment (100% vs 62%) and in-app purchases (none vs 5). Ultraviolet Chat's advantage is ratings volume (727 vs 6) and chart position (#191 vs unranked). 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. Ultraviolet Chat sells 5 one-off in-app purchases. Colog asks for nothing beyond the download.
Colog holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Ultraviolet Chat has 727 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 100% of Colog's written reviews are positive against 62% of Ultraviolet Chat's.
Colog ships an update every 8 days, Ultraviolet Chat every 3 weeks. Both last shipped on November 12, 2026.
| Parameter | Colog | Ultraviolet Chat |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 4.1 (727 ratings) |
| Positive reviews | 100.0% of reviews — better | 62.2% of reviews |
| Number of ratings | 6 | 727 — better |
| Update frequency | Every 8 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #191 — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 104 MB | 110 MB |
| Age rating | 4+ | 12+ |
| Developer | Ness LCC | Ultraviolet Labs, Inc. |
Customer experience
Colog
Ultraviolet Chat
Bugs and requests
Colog
Not enough reviews yet to summarise bugs or requests.
Ultraviolet Chat
Reported bugs
5 issues- Login issues and account setup problems
- Unreliable video playback and content access
- Inconsistent notification and messaging functionality
- Crashes and freezes during app usage
- Syncing and data loss problems
Requested features
5 requests- Improved account management options
- Ability to save purchased content
- Explore feature to discover new creators
- Web-based version for desktop access
- Detailed creator analytics dashboard
In-app purchases
Colog
No in-app purchases
Ultraviolet Chat
- $2.99 Gem Pack$2.99
- $4.99 Gem Pack$4.99
- $9.99 Gem Pack$9.99
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- $18.99 Gem Pack$18.99
- $44.99 Gem Pack$44.99
