Ninput vs The Abyss
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Ninput
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Type less. Say more. Ninput brings private, on-device AI to your keyboard, helping you complete words, phrases, and sentences in messages, emails, and notes. SMART COMPLETION Get suggestions based on what you're writing. Tap a candidate to keep your thoughts moving. ENGLISH & CHINESE PINYIN Switch between English typing and Chinese Pinyin. Choose English or Chinese prediction results to suit your conversation. PRIVATE & OFFLINE Your keyboard input, predictions, and learned vocabulary stay on your device. AI predictions run locally, with no cloud uploads. Once the system model is ready, you can use predictions offline. FREE TO TRY Explore smart input with a free daily allowance. When it runs out, regular typing and basic suggestions remain available. The allowance resets each day. NINPUT PRO Subscribe monthly or yearly to remove the daily smart-input limit. Prices are shown before purchase. Payment is charged to your Apple Account. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends; renewal is charged within the final 24 hours. Manage or cancel in Settings > [your name] > Subscriptions. REQUIREMENTS iOS 26 or later. AI predictions require a compatible device with Apple Intelligence enabled and its on-device model ready. Availability varies by language and region. Initial model download may require an internet connection. Regular typing remains available when AI predictions are unavailable. Privacy Policy: https://www.ningdom.com/privacy.html Terms of Use: https://www.ningdom.com/terms.html
The Abyss
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The Abyss is the iOS companion for Hermes - your self-hosted AI agent running on your own machine. Connect over your local network or Tailscale, send prompts, watch the agent think and reach for tools in real time. The Abyss is a remote control. Hermes is the brain. You own both. Built for people who already host their own things. CHAT - Live token streaming. Watch the agent's reply appear as it's generated. - Transparent tool calls. See the agent reach into your shell, files, or the web - with each tool's name and arguments shown as a card. - Multimodal. Attach images from the photo library and send them with your prompt. - Slash commands. Trigger agent-side commands from a clean, keyboard-friendly composer. VOICE MODE - Hands-free conversation. Dictate prompts and hear the reply spoken back. - On-device transcription. Your voice is transcribed locally; the text is what gets sent to your agent. - Bring-your-own TTS. If your Hermes backend streams text-to-speech, you hear the agent in a neural voice; otherwise it falls back to iOS voices. SESSIONS - Server-side history. Every conversation lives on your own Hermes server, not ours. - Searchable, renameable, pinnable. Find the thread you need, give it a name, keep it on top. - Local cache. Scroll the transcript even when you're offline. MULTIPLE BACKENDS - Run more than one Hermes instance? Add them all. Switch active with one tap. - Pair a second device by scanning a QR code. Credentials never cross our servers - we don't have any. - Each backend gets its own identity colour so you always know which agent you're talking to. DEMO MODE - Not running Hermes yet? Try the demo. A scripted preview shows how the real client behaves, without any setup. No account, no network, no obligation. PRIVACY-FIRST BY DESIGN - All credentials live in iOS Keychain. Face ID required before revealing or sharing them. - No analytics. No third-party SDKs. No telemetry. - The Abyss only talks to the backends you point it at. Apple processes any future purchases; that's the only third party in the loop. - App data flows between your device and your own Hermes backend. Nothing else. REQUIREMENTS - A running Hermes Agent on a machine you control. - Network reachability to that machine. Same Wi-Fi works; Tailscale (or another mesh) is recommended if you want to reach the agent from anywhere. The Abyss is not a hosted AI service. It is a remote control for an AI agent you host yourself.
Screenshots
Verdict
The clearest difference is in-app purchases: The Abyss at none against Ninput's 2. The Abyss also leads on update cadence (every 5 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Ninput sells 2 in-app purchases, starting at $1.99 per month. The Abyss asks for nothing beyond the download.
Ninput ships an update every 2 months, The Abyss every 5 days. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.
| Parameter | Ninput | The Abyss |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 5 days โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 26.0 โ better | 26.5 |
| Further details โ not scored | ||
| Size | 13 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Beijing Ningdom Technology Co., Ltd. | Vladimir Adamovic |
In-app purchases
Ninput
- Monthly$1.991 Month
- Yearly$14.991 Year
The Abyss
No in-app purchases









