Modem AI vs TrueSignal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Modem AI
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Modem AI is a private assistant for iPhone, iPad, and Mac. It runs a language model on your device, so your conversations stay there. There is no account, and your prompts stay on the device rather than going to a cloud chatbot. The first launch downloads Phi-3-mini, about 2.7 GB. After that, you can chat without a connection. Replies can take longer than a cloud service. That is the trade for keeping the conversation on the device. The model needs about 4 GB of available memory. What you can do • Chat in natural language, including answers with lists and code • Dictate a message with on-device speech recognition. Audio stays on the device • Write a system message, and set temperature, top-p, and maximum response length • Choose light, dark, or system appearance • Copy a reply, start over, or clear history Privacy Your prompts and replies stay on the device. Modem AI does not read them. If you send feedback or report a reply, only what you choose to submit is shared. The app may send anonymous performance statistics, such as whether a feature succeeded. Those statistics do not include your conversations.
TrueSignal
This app provides a real-time indicator of your phone's actual internet connection quality, going beyond simple signal bars. It helps you understand if you can load pages, send messages, or make calls, offering detailed insights into latency and stability.
- Real-time ping-based connection monitoring
- Green/yellow/red status indicator
- Recent history chart with latency
- Stability score
- SignalFinder for strongest signal direction
- Foreground monitoring with no battery drain
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TL;DR Your bars lie. TrueSignal measures the connection you ACTUALLY have. Really. Those bars? They are lying to you. They show SIGNAL STRENGTH, which is almost meaningless to you and your phone. TrueSignal measures YOUR phone's ACTUAL connection, not just the signal your phone sees. I've been there. I've been frustrated. At the football game. At the airport. On the road while traveling. Restart the phone. Say choice words. Wander around and look for more bars. We've ALL been there! I couldn't find an app that actually gave me my ACTUAL connection, so I created TrueSignal. This isn't another speed test app. They exist (and are very good). But you actually have to have a connection in order to use those apps. No connection = useless speedtest apps. TrueSignal shows real connection quality with live latency monitoring, simple green/yellow/red status, event history, and SignalFinder - the compass that points you toward a stronger signal. FREE FEATURES - Real-time ping-based connection monitoring - Green / yellow / red status — know instantly - Recent history chart with latency in milliseconds - Stability score - Stable, Intermittent, or Poor - Event log - track outages and recoveries over time - SignalFinder - rotate your phone to find the strongest signal direction - Custom ping server - use your own server for maximum privacy - Supports WiFi, 5G, LTE, 4G, 3G, and more - Use worldwide! - Home screen widget - No account required All of the free features are FREE and are fully functional. If you really want to know about your phone connection, TrueSignal Pro is fantastic! I created some awesome functionalities that give you real, pro-level connection analysis tools for a price that's unbeatable. Try it out! TRUESIGNAL PRO - Connection Quality Score - composite A–F grade across latency, stability, consistency, and reliability with per-metric breakdown and improvement tips - Connection Sentinel - an adaptive ping guardian that slows down when stable and snaps back to full speed the moment trouble is detected - ISP Evidence Pack - formal complaint document with executive summary, total downtime, and ready-to-use talking points for your ISP support call - Compare Mode - monitor up to 3 servers simultaneously - Walk Test - map connection quality as you move through a space - Smart Alerts - notifications for outages, slowdowns, and recovery - Named Profiles - save and switch setups with one tap - Network Log - every WiFi and cellular change, timestamped - Webhooks- POST events to Home Assistant, smart plugs, or custom servers - Speed Test - on-demand download and latency measurement SIRI SHORTCUTS Ask Siri, "Check my connection in TrueSignal" for an instant spoken result - no need to open the app. PRIVACY No ads. No tracking. No accounts. No data ever collected. TrueSignal only contacts the server you configure - nothing else! TrueSignal: bars lie. This doesn't. Thank you for your support of indie developers! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Modem AI at none against TrueSignal's 6. TrueSignal's advantage is update cadence (every 2 days vs every 7 months). 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. TrueSignal sells 6 in-app purchases, starting at $0.99 per month. Modem AI asks for nothing beyond the download.
Modem AI ships an update every 7 months, TrueSignal every 2 days. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.
| Parameter | Modem AI | TrueSignal |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 7 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 42 MB | 45 MB |
| Age rating | 17+ | 4+ |
| Developer | Joe Mayo | David Schwind |
In-app purchases
Modem AI
No in-app purchases
TrueSignal
- TrueSignal Monthly$0.991 Month
- TrueSignal Pro Monthly$5.991 Month
- TrueSignal Annual Subscription$9.991 Year
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- TrueSignal Pro Annual Subscription$29.991 Year
- TrueSignal Pro Lifetime$19.99
- TrueSignal Lifetime Subscription$59.99









