Contactopus vs Kernelhub
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Contactopus
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Contactopus is the ultimate free contacts management app that transforms how you interact with your contact list. Unlike other apps, Contactopus is 100% free - no ads, no subscriptions, just pure contact management power. ** Unleash Contact Superpowers ** Multi-Format Export: Seamlessly export contacts in vCard 3/4, CSV, Excel, SQLite, and JSON Bulk Management: Easily delete and organize contacts with a few taps Deep Analytics: Gain insights into your contact network ** Comprehensive Contact Insights ** Contact composition analytics (addresses, emails, photos, locations) Upcoming birthday tracking Most common country codes visualization Global contact locations mapped Most frequent names analysis ** Unique Family Connection Mapping ** Visualize family relationships in an intuitive graph Identify potential duplicate contacts ** Completely Free ** Our adorable octopus mascot brings you a powerful contacts tool without any hidden costs or intrusive advertisements. Perfect for personal and professional contact management - Contactopus has you covered!
Kernelhub
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KernelHub connects the CLI coding agents already running on your own machine — Claude Code, Codex, Antigravity CLI — to the phone in your pocket. Getting started is one command. In your project folder, run icloser pair. It prints a code. Scan it. That's the setup. WHAT IT IS FOR You leave your desk mid-task. Later, on your phone, you want to know what your agent decided, approve the thing it's waiting on, or say one more sentence — without re-explaining the whole project from scratch. KernelHub keeps tasks, agents, memory and files together, so the next device picks up where the last one stopped. HOW IT WORKS • Say it in plain language. Your sentence is queued verbatim and handed to the CLI runtime on your own machine. • Watch it happen. A single timeline shows what needs you, what is running, and what finished. • Decide from anywhere. Approvals, questions and conflicts are actionable from the phone. • Seven permission levels — read, change code, run commands, search the web, push, system ops, delete or migrate data — each confirmed per device. Permission granted on one device is never inherited by another. WHAT IT DOES NOT DO KernelHub never holds your model API keys, and the backend never calls a model. Every conclusion comes from the runtime signed in on your own machine. The workspace token lives in this device's Keychain and never syncs via iCloud. When it cannot read your workspace, it says so. It will not draw an empty screen and let you conclude there is nothing to do — that misreading is exactly what this app exists to prevent. REQUIREMENTS A machine running icloser, reachable from your phone, with at least one CLI coding agent installed and signed in.
Screenshots
Verdict
The clearest difference is in-app purchases: Kernelhub at none against Contactopus's 4. 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. Contactopus sells 4 one-off in-app purchases. Kernelhub asks for nothing beyond the download.
| Parameter | Contactopus | Kernelhub |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 21 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Sahil Chaddha | iCloser Ltd. |
In-app purchases
Contactopus
- Coffee Tip$0.99
- Beer Tip$2.99
- Lunch Tip$4.99
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- Dinner Tip$9.99
Kernelhub
No in-app purchases









