Spy Hearing vs NDR Hosts
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spy Hearing
Amplify distant sounds and record audio with your phone. This tool offers enhanced listening capabilities with various EQ presets and acoustic space options. It processes audio on-device for privacy and works with multiple headphone types.
- Up to 16x audio amplification
- 5 tuned EQ presets
- 9 acoustic space settings
- Background recording
- Noise cancellation
- 8-band parametric EQ
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Hear what others can't. Spy Hearing turns your iPhone into a long-range listening device. Amplify distant voices, pull muffled audio through walls and doors, and record every session — all from your headphones, on a phone you already carry. Whether you're a curious investigator, a journalist capturing interviews, or someone with mild hearing difficulty who wants extra clarity, Spy Hearing puts professional-grade audio control in your pocket. KEY FEATURES • Up to ×16 amplification through your headphones • 5 tuned EQ presets — Long Range, Through Walls, Whisper, Bass, Custom • 9 acoustic Spaces from Small Room to Cathedral • Independent stereo balance for one-ear listening • Background recording — capture audio with the screen off • Noise cancel for indoor conversations • 8-band parametric EQ with manual control WORKS WITH AirPods, AirPods Pro, AirPods Max, wired EarPods, third-party Bluetooth headsets, AirPlay receivers — any audio output your iPhone can route to. PRIVACY-FIRST Your audio is processed entirely on your device. We do not run servers that receive your audio. We do not collect personal data, embed analytics SDKs, or track you. No accounts. No sign-in. No tracking pixels. PRO ACCESS — PRICING & TERMS • Weekly subscription with a 3-day free trial. After the trial ends, the subscription renews automatically each week at the price displayed in the app and in App Store Connect. Cancel anytime in Settings → [your name] → Subscriptions at least 24 hours before the period ends to avoid renewal. • Lifetime — a single one-time non-consumable purchase. No trial. No recurring charges. Yours forever. Payment is charged to your Apple ID at confirmation of purchase. Subscription auto-renewal can be turned off in iOS Settings. Refunds are handled by Apple at https://reportaproblem.apple.com. SUBSCRIPTION REQUIRED Spy Hearing requires an active subscription or a one-time lifetime purchase to use. There is no free tier. Choose between a 3-day free trial that converts to a weekly auto-renewing subscription, or a single lifetime purchase with no recurring charges. IMPORTANT Spy Hearing is an entertainment and personal-use audio amplification tool. It is not a hearing aid, not a medical device, and not registered with the FDA, EMA, or any other regulator. For hearing concerns, consult a licensed audiologist. You are responsible for complying with the laws of your jurisdiction regarding microphone use, audio recording, and consent. Recording without consent may be a serious offense in your area. Headphones are required for the best experience. Without them the microphone picks up the speaker output and creates feedback. Privacy Policy: https://docs.google.com/document/d/162eu7hM3lMA9uxrXoFx83Fu1Ia_-F0aGA_XbP18uyA0/ Terms of Use: https://docs.google.com/document/d/1yx-SP0V9sydnA5gZfu45RN_lJZYvW6EI9LWTaw5XXZg/ Support: aistemsolutions@gmail.com
NDR Hosts
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A threat-intelligence wiki for the destinations you meet during security monitoring. Analysts collaboratively record what the URLs, domains, and IPs seen in Darktrace (NDR) and similar tools actually are. Meet an unfamiliar destination, and the next analyst gets the answer with a single search. FEATURES - Anyone can add or edit, no sign-up required (wiki style) - Entries sync to every device in real time - Classify by risk, confidence, category, and tags - Search by domain, IP, or tag; filter by risk level - Paste an address straight from your console and search it - Save entries to a device-local list and revisit what you viewed - Light and dark themes; English and Korean SAFE BY DESIGN - Every address is shown defanged (hxxps://, evil[.]com) and never opens as a live link. - Copies stay defanged, so pasting into a ticket cannot produce a clickable link. - Search understands defanged input, so you can paste exactly what you see. TRUST AND REVIEW - Report an incorrect entry; repeated reports automatically flag it as "under review". - Flagged entries are marked in the list, not just on the detail screen. - Every change is kept in the edit history under an anonymous ID. Note: Information is contributed by users and is for reference only. Do not enter personal or confidential data.
Screenshots
Verdict
The clearest difference is in-app purchases: NDR Hosts at none against Spy Hearing's 2. NDR Hosts also leads on iOS requirement (15.0 vs 17.0). Spy Hearing's advantage is ads (none vs shown). On price, update cadence 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
Both are free to download. Spy Hearing sells 2 in-app purchases, starting at $4.99 per 7 days. NDR Hosts asks for nothing beyond the download.
Spy Hearing ships an update every 3 weeks, NDR Hosts every 2 weeks. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.
| Parameter | Spy Hearing | NDR Hosts |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (64 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 64 — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Muhammad Ajmal | DAEHONG MIN |
In-app purchases
Spy Hearing
- Weekly3 Days trial$4.997 Days
- Lifetime$14.99
NDR Hosts
No in-app purchases









