Comparison

Netz vs Blackwall

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

Head to head
About

Netz

Features
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App zur Ansteuerung der emsys Netz-Analyzer Produktfamilie. Diese App ermöglicht es, Mobilfunk-Netzwerk-Scans und wireless M-Bus Scans durchzuführen. Weiterhin sind für Mobilfunknetzwerke Live-Messungen und Speed-Tests möglich. Zur Nutzung der App wird ein Netz-Analyzer benötigt.

About

Blackwall

Features
Read full description

Turn on airplane mode. Ask it a question. It answers. Blackwall runs a language model on your iPhone or iPad. Not a thin client for someone else's server — the actual model, loaded into your device's memory, generating each word on your hardware. There is no account to create, no subscription, and no request leaving your phone. WHAT THAT MEANS IN PRACTICE Your conversations are never uploaded, because there is nowhere to upload them to. No history sitting in a company's database. No terms-of-service change that quietly starts training on your messages. Nothing to delete from a server, because nothing was ever on one. Blackwall works on a plane, on the subway, in a country where the usual assistants are blocked, and on a phone with no SIM. SEVEN CURRENT MODELS, YOUR CHOICE A small model is built in, so you can ask something the second you open the app. From there you pick what you want to run: • Qwen3.5 — 0.8B to 9B, from instant short answers to quality-first text work • Gemma 4 E2B — general chat plus image and document understanding • MiniCPM-V 4.6 — focused OCR for screenshots, receipts and documents • Phi-4 Mini Reasoning — English math and structured derivations Each optional download is resumable and checksum-verified. Blackwall tells you whether a model fits your device before you spend the bandwidth, and you can delete any of them later. Already have a model you like? Import any .gguf file and Blackwall will run it. READ, LISTEN, SUMMARISE — ALL ON DEVICE • OCR and image understanding: point it at a receipt, a screenshot, a whiteboard • PDF and text documents: summarise a contract without emailing it to anyone • Voice input using Apple's on-device speech recognition • Text-to-speech for replies • Local memory that carries context between conversations • Export any thread as Markdown, or share a reply as an image BUILT FOR THE DEVICE iPad split view with a docked thread list. Keyboard shortcuts. A home-screen and lock-screen widget. Siri Shortcuts — "Ask Blackwall" works with no signal. Two appearances: Terminal, the full neon look, with nine themes to pick from — or Standard, plain high-contrast type that follows your device's light or dark setting. Five typefaces. Adjustable text size. THE HONEST PART Local models are smaller than the ones running in datacentres. A 4B model on a phone will not match a frontier model on a server, and Blackwall does not pretend otherwise — it tells you what each model is good at and what it costs in storage, memory and speed. The one thing Blackwall downloads is the model file itself, from Hugging Face, when you ask it to. After that you can stay offline forever. Requires iOS 17. A device with 6 GB of memory is recommended for mid-size models; the 9B model requires 12 GB.

Screenshots

Netz4 screens
Blackwall4 screens

Verdict

The call

The clearest difference is update cadence: Blackwall at every 6 weeks against Netz's every 4 months. Netz's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Netz ships an update every 4 months, Blackwall every 6 weeks. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 4 level
Netz versus Blackwall: the parameters behind the verdict, then further details
ParameterNetzBlackwall
PriceFreeFree
Update frequencyEvery 4 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size88 MB522 MB
Age rating4+17+
Developeremsys Embedded Systems GmbHCan Kirsallioba

In-app purchases

None

Netz

No in-app purchases

None

Blackwall

No in-app purchases

Questions

Is Netz free?
Netz is free to download, with no in-app purchases.
Is Blackwall free?
Blackwall is free to download, with no in-app purchases.
Do Netz or Blackwall have ads?
Neither Netz nor Blackwall shows ads.
Which is updated more often, Netz or Blackwall?
Netz ships an update every 4 months, and Blackwall every 6 weeks. Most recently, Netz was updated on November 7, 2026 and Blackwall on November 9, 2026.

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