Twini vs HauntKeep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Twini
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Twini is a creative social platform where users can design AI characters that post and share unique content. Create your digital persona, explore a dynamic feed shaped by diverse characters, and engage through text, images, and video. Twini turns character creation into an interactive storytelling experience. What you can do on Twini: - Design and customize unique AI characters - Watch characters share text, image, and video content - Communicate one-on-one or in groups - Follow your favorite characters and engage with their stories - Explore a creative feed that grows with every contribution Whether you want to tell stories or experience a new kind of content-driven social app, Twini is a space for your creativity. Terms of Use: https://twiniverse.io/terms-of-use Privacy Policy: https://twiniverse.io/privacy-policy
HauntKeep
This app transforms your phone into a paranormal investigation kit, featuring tools like an EMF meter, spirit box, and EVP recorder. It provides detailed readings and allows for session recording with environmental context, all designed for atmosphere and a good scare.
- EMF Meter with Kp context
- EVP Recorder with waveform and spectrogram
- Spirit Box with synthesized voice sweep
- SLS camera overlay
- Session recording with timeline
- Environmental context tagging
- Private by design, no trackers
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HauntKeep turns your phone's real sensors into a kit of paranormal investigation instruments: SLS, an EMF meter, a spirit box, an EVP recorder, a vibration geophone, and more. Built for atmosphere, curiosity, and a good scare. Every reading has a source, and the app shows it. A number on screen traces back to a sensor in your phone, with the steps behind it on the same screen: the live input, the baseline it is measured against, and the math in between. Values the app fetches or works out are labeled that way: the day's space weather and local conditions are fetched, and the moon phase is worked out from the date. A mode that needs hardware your phone doesn't have says so and stops. What a reading means is yours to decide. Every mode says which kind it is: REAL for the ones that measure a physical signal, EXPERIENCE for the ones built for mood and story, on the tile, before you open it. Both kinds show their working. THE INSTRUMENTS: each reads a sensor on your phone • EMF Meter: your phone's real magnetometer, with a live baseline, a standard-deviation gauge, and space-weather (Kp) context so you can see when the field leaves your room's normal. • EVP Recorder: records the room to WAV with markers, then plays it back with a waveform, spectrogram, variable speed and a high-pass filter. • Sound: a live level meter and FFT spectrogram of the room. • Vibration: a geophone that turns your accelerometer into a seismograph for taps and footsteps. • Shadow: place your phone and watch for luminance and motion changes. • Dowsing Rods: two rods swung by real changes in magnetic heading. • Vision: a low-light camera enhancer. • SLS: a pose-estimation skeleton overlay on the live camera. THE EXPERIENCES: interpretive, and each names what drives it • Dictionary: a word engine driven by live field readings. • Phonetic (Spirit Box): a synthesized voice sweep; the field sets how busy it is, and the words come from the app's own bank. • Radio Sweep: a sweep across live internet radio. • Music Box, Morse, REM Touch, Talking Board, Draw, White Noise, and a live multi-sensor Investigation camera. SESSIONS • Record a baseline sweep so spikes are measured against your room's own normal. • A cross-mode timeline lines up every mode's events on one ruler and flags moments when two or more independent sensors fire within the same 2 s window. • Tag a session with real environmental context: weather, sunrise/sunset, moon phase, and the space-weather Kp index (optional; uses approximate location). • Export a session as a clean report or a shareable zip. PRIVATE BY DESIGN • Yours alone: no accounts, no ads, no trackers, no analytics SDKs. • Your recordings, photos, and notes stay on your device. • The one thing that ever leaves your phone is an approximate, rounded location, sent to a weather service when you tap to add environmental context. • Deleting the app removes all of its data. FREE TO EXPLORE Free to install, with the EMF meter and the Talking Board fully open: no time limit and no ads. The whole investigation layer is free too: sessions, the baseline sweep, the cross-mode timeline and environmental context. One optional purchase opens the remaining modes and lets you take a case file away: PDF reports, session bundles and CSV export. Pay once; there is no subscription. WHAT TO EXPECT The instruments read your phone's real sensors, and every value arrives with the steps behind it. HauntKeep is an entertainment app, not a scientific, medical, or safety instrument, and it makes no claim about what its readings mean. What those readings mean is left entirely to you. It contains paranormal and mild-horror themes and is intended for a general (not young child) audience. Grab a friend, turn out the lights, and go ghost hunting. HauntKeep™ is a trademark of Hevenis LLC.
Screenshots
Verdict
The clearest difference is in-app purchases: Twini at none against HauntKeep's 1. 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. HauntKeep sells 1 one-off in-app purchase. Twini asks for nothing beyond the download.
| Parameter | Twini | HauntKeep |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 37 MB | 50 MB |
| Age rating | 12+ | 12+ |
| Developer | SEUNG TAE RYU | Caelori LLC |
In-app purchases
Twini
No in-app purchases
HauntKeep
- Full Toolkit Unlock$9.99









