Dotta vs Valdis
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Dotta
This AI assistant offers voice-activated interaction for easy access to advanced technology. Users can ask thousands of questions with a simple credit top-up, avoiding subscriptions. It's designed for all skill levels.
- AI-powered assistance
- Voice interaction
- Simple button interface
- Credit top-up system
- No subscriptions required
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Dotta allows everyone to use one of the best artificial intelligences with simple buttons suitable for every level of expertise. Voice interaction makes it easy and effective to bring everyone closer to these new technologies. With a small credit top-up, and without subscriptions, you can ask thousands of questions.
Valdis
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Valdis is an AI companion that keeps one conversation going across your Mac and iPhone β at home, on a walk, and offline. Valdis is built natively for macOS and iOS β no Electron, no fake web UI. At home, chat in text or voice β with your Mac doing the heavy lifting (local Ollama by default, with LM Studio as a local-first alternative). You can also send images in chat β pick from Photos, the camera, files, or paste/drag-and-drop. Valdis passes images to supported multimodal models so you can ask about what you see. When you step outside, switch to Walk & Talk for hands-free voice. On a plane or without internet, use Appleβs on-device model (Foundation Models) on supported Apple Intelligence devices. Back online, switch back to your Mac β or to a cloud provider you choose β and keep going without resetting. WALK & TALK (HANDS-FREE VOICE) - Real-time voice chat with on-device speech-to-text (WhisperKit) - Spoken replies (hands-free) - A 3D avatar with lip-sync and animations (RealityKit) CONTINUITY THAT DOESNβT RESET Keep the same conversation going across iPhone and Mac, so you donβt have to repeat yourself. APPLE ON-DEVICE (FOUNDATION MODELS) When Apple Intelligence is available, Valdis can use Appleβs on-device model for fast, private replies β even offline. Requires Apple Intelligence to be enabled in Settings. MAC-POWERED INFERENCE Run bigger models on your Mac and talk to them from your iPhone: - macOS runs local Ollama by default (LM Studio is also supported!) - Vision models are supported (so you can send images) when the selected provider/model supports it - Your iPhone can use your Mac for inference while youβre out REAL-TIME iPHONE β MAC SYNC Keep your conversation in sync between iPhone and Mac when your iPhone is using your Mac as the provider: - Your Mac app hosts the server your iPhone connects to - Works over local network, VPN, or Tailscale LOCAL FIRST - No Valdis cloud: Valdis doesnβt have its own servers β sync happens only between your devices when you use your Mac as the provider. - Your Mac app can act as your backend (and sync host) when your iPhone uses it as the provider. - Cloud providers are opt-in and used for inference only. - Zero telemetry: no analytics, no crash reporting.
Screenshots
Verdict
The clearest difference is in-app purchases: Valdis at none against Dotta's 1. On price, update cadence, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Dotta sells 1 one-off in-app purchase. Valdis asks for nothing beyond the download.
Dotta ships an update weekly, Valdis every 8 days. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.
| Parameter | Dotta | Valdis |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Weekly β better | Every 8 days |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Monetization | Free with in-app purchases | β |
| Devices | iPhone, iPad | iPhone, iPad, Mac β better |
| Requires iOS | 17.0 β better | 18.0 |
| Further details β not scored | ||
| Size | 3 MB | 82 MB |
| Age rating | 4+ | 12+ |
| Developer | Perma Evidence SA | Alexander Vlasov |
In-app purchases
Dotta
- up to 5000 questions $5+VAT$4.99
Valdis
No in-app purchases









