Contacts Manager vs Slimm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Contacts Manager
Organize your address book with advanced AI. Easily back up, merge duplicates, and manage contacts. Send group messages and delete entries in bulk for a cleaner, more efficient contact list.
- AI-powered contact management
- One-click vCard backup and sync
- Intelligent duplicate contact merging
- Detects expired and frequently used numbers
- Group SMS sending
- Batch contact deletion
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* Use international cutting-edge artificial intelligence algorithms * ======Smart management address book====== [Backup Management]: Export vCard from the phone address book with one click, sync back to the phone at any time, don’t worry about changing phones! [Quick arrangement]: It is more convenient to change the machine. Intelligently merge duplicate contacts, save worry and effort [Smart Detection]: Automatically detect expired numbers and frequently used numbers, making it more convenient to make calls [Group SMS]: Send holiday blessing SMS in groups, the app does not charge fees [Batch delete]: Delete contacts in batch with one key
Slimm
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Running out of iCloud space? Let Slimm slim it down! Free up massive amounts of iCloud storage through smart compression and external backups, all while keeping your complete history and timeline intact in the Photos app. Your precious memories are never lost. By keeping low-resolution media in your iCloud timeline and offloading the original, high-quality files to your local storage (Free) or other cloud storage options (requires Slimm Pro), Slimm gives you the best of both worlds. Enjoy seamless iCloud syncing and accurate photo memory recommendations, while avoiding hefty storage costs. It's the ultimate, clever solution to your storage woes.
Screenshots
Verdict
The clearest difference is price: Slimm at Free against Contacts Manager's $0.99. Slimm also leads on update cadence (every 3 days vs every 3 months). Contacts Manager's advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 18). On 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
Slimm is free to download; Contacts Manager costs $0.99 up front. Slimm sells 1 one-off in-app purchase. Contacts Manager asks for nothing beyond the download.
Contacts Manager ships an update every 3 months, Slimm every 3 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.
| Parameter | Contacts Manager | Slimm |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.5 (92 ratings) — better | — |
| Positive reviews | 84.2% of reviews | — |
| Number of ratings | 92 — better | — |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 18 |
| Further details — not scored | ||
| Size | 11 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Chuansheng Jia | 君 周 |
In-app purchases
Contacts Manager
No in-app purchases
Slimm
- Slimm Pro$3.99
