Comparison

Mosaic vs Dark18

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mosaic

Work together with friends to finish intricate mosaic puzzles. This app offers a collaborative way to enjoy puzzle-solving with a social twist.

Highlights
  • Collaborative puzzle completion
  • Social interaction
  • Mosaic creation
  • Friend-based gameplay
Read full description

Collaborate with friends to complete mosaics.

About

Dark18

A private messenger offering secure end-to-end encrypted chats, HD voice and video calls, and community groups. Share updates through stories that disappear after 24 hours. Enjoy a clean, dark-themed interface designed for privacy and freedom.

Highlights
  • End-to-end encrypted messaging
  • HD voice and video calls
  • Private and public groups
  • 24-hour disappearing stories
  • Dark-themed interface
  • Secure sync across devices
Features
Read full description

Welcome to Dark – the ultimate private messenger with stories, calls, and community. Dark is your all-in-one communication platform for secure messaging, high-quality audio and video calls, and authentic sharing through stories and groups – all wrapped in a sleek, dark-themed design. Whether you’re chatting one-on-one, connecting with friends in a group, or expressing yourself through stories, Dark gives you the freedom to communicate your way – with privacy and control at the center. This app contains non-intrusive ads that support ongoing development while keeping the app free for all users. Built for Privacy and Freedom Dark puts end-to-end encryption front and center, ensuring your messages, media, and calls stay truly private. No one – not even Dark – can read your messages or listen to your calls. • Secure by default • Your data stays on your device • We do not sell your information Seamless Messaging Experience Enjoy fast, smooth, and beautiful messaging – whether you’re sending text, voice notes, photos, or videos. • One-on-one or group chats • Media sharing and reactions • Smart notifications • Secure sync across devices Voice and Video Calls Stay close, even when far apart. Dark offers HD-quality voice and video calls with full encryption. • Real-time video with smooth audio • Mute and switch cameras instantly • Reliable even on slow networks Groups That Feel Like Community Dark helps you start, grow, and manage private or public groups with ease. • Admin tools and permissions • Real-time announcements • Clean layout for focused conversations • Ideal for clubs, teams, and communities Share Life Through Stories Post quick updates, thoughts, photos, or short videos that last 24 hours – or longer, if you choose. • Stories with text, media, and reactions • Full control over who sees your updates • Authentic, private sharing Minimal Design, Maximum Function • Clean, dark theme for comfortable viewing • Easy navigation across all features • Lightweight and optimized for speed • Quick sign-up with email or Google Free to Use, Ad-Supported Dark is 100% free. To support development, we show limited, respectful ads – no pop-ups, no trackers. • No subscription required • Ads placed responsibly, without interrupting your flow Key Features Recap • Private, encrypted messaging • Secure voice and video calls • Groups with admin controls • Stories with privacy settings • Clean dark-mode interface • Fast and lightweight • Privacy-respecting ads Join the Movement Dark isn’t just a chat app – it’s a space for people who value privacy, connection, and freedom. Your data is yours. Your time is yours. TERMS OF USE (EULA): For auto-renewable subscriptions, please review Apple's Standard End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ SUBSCRIPTION INFORMATION: - Subscription Title: Auto-renewable subscription - Subscription Length: Weekly/Monthly/Yearly (as selected by user) - Subscription Price: Dynamic pricing based on channel settings - Auto-renewal: Subscriptions automatically renew unless cancelled 24 hours before the end of the current period - Privacy Policy: https://www.termsfeed.com/live/20cde3e7-afa3-475c-b043-3bad3d0f8a0f - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mosaic1 screens
Dark184 screens

Verdict

The call

The clearest difference is rating: Mosaic at 5.0 against Dark18's 3.8. Mosaic also leads on in-app purchases (none vs 6) and update cadence (every 2 days vs weekly). Dark18's advantage is ratings volume (181 vs 3). On price, ads, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Dark18 sells 6 in-app purchases, starting at $4.99 per 7 days. Mosaic asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mosaic holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Dark18 has 181 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Mosaic ships an update every 2 days, Dark18 weekly. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

Scorecard4 real differences · 6 level
Mosaic versus Dark18: the parameters behind the verdict, then further details
ParameterMosaicDark18
PriceFreeFree
Rating5.0 (3 ratings) — better3.8 (181 ratings)
Positive reviews—41.2% of reviews
Number of ratings3181 — better
Update frequencyEvery 2 days — betterWeekly
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supportedAd-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size43 MB130 MB
Age rating4++17
DeveloperClay HindmanAna Lucila Gomez Navarro

Customer experience

Mosaic

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Dark18

All ratings176 ratings
Positive67.6%
Neutral2.8%
Negative29.5%
Written reviews17 reviews
Positive41.2%
Neutral0.0%
Negative58.8%

In-app purchases

None

Mosaic

No in-app purchases

6 purchases

Dark18

Subscriptions3
  • Weekly Premium Access$4.997 Days
  • Monthly Premium Access$8.991 Month
  • Yearly Premium Access$90.991 Year
One-time3
  • Weekly Premium Access$5.99
  • Monthly Premium Access$8.99
  • Yearly Premium Access$99.99

Questions

Is Mosaic free?
Mosaic is free to download, with no in-app purchases.
Is Dark18 free?
Dark18 is free to download, with in-app purchases available.
Which has better reviews, Mosaic or Dark18?
Mosaic is rated higher. Mosaic averages 5.0 out of 5 from 3 ratings, while Dark18 averages 3.8 from 181 ratings.
Do Mosaic or Dark18 have ads?
Both Mosaic and Dark18 show ads.
Which is updated more often, Mosaic or Dark18?
Mosaic ships an update every 2 days, and Dark18 weekly. Most recently, Mosaic was updated on October 30, 2026 and Dark18 on November 8, 2026.

Other comparisons