Local Sidereal Time vs SoulTuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Local Sidereal Time
This app calculates local sidereal time, a system astronomers use to locate celestial objects. It can also be used for personal development, with studies suggesting increased psychic abilities during specific sidereal times. The pro version offers advanced features like notifications and map-based calculations.
- Calculate local sidereal time
- Astronomy celestial object location
- Potential psychic ability enhancement
- Pro version notifications
- Pro version map-based calculation
- Pro version date/time conversion
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Sidereal helps you track local sidereal time from your current location or any place you want to check. It is designed for people interested in the 13:30 LST window discussed in remote-viewing literature, while also supporting any custom sidereal target you want to follow. Use Sidereal to: View a live local sidereal clock based on your current location Calculate local sidereal time manually from longitude, date, and time Search for a city or address and see the result with map support Generate the next 31 upcoming hits for your selected sidereal target Schedule the next 30 days of on-device alerts Export future times to CSV and export events to your calendar Customize your target LST, alert timing, full-window notifications, night viewing, and map visibility Sidereal starts with 13:30 LST as the default target, but you can change it in Settings to track any local sidereal time. The app includes a trial, with Pro unlocking continued access to advanced tools and planning features.
SoulTuner
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SoulTuner provides a simple way for you to explore the effects of binaural beats where each ear receives a slightly different frequency. This is said to produce feelings of relaxation or greater focus depending on the settings. Use the knobs to adjust the base (Carrier) frequency to one that feels right for you. Optionally, add harmony voices and reverb for a fuller sound or listen to a complex harmony of drones all by itself. Features —Pure binaural sine waves, one for each ear in headphones —Music toggle to switch to musical notes instead of raw frequencies —Toggle to swap left and right for binaural sources —Up to 25 additional color-coded interval harmony drones over two octaves (but less is often more) —Add automated panning to gently move drones around —Add reverb for fuller spacial sound —Change harmony drone voices —Create ambient noise of various pleasing types: Pink, Brown, Green, Gray, White and add a slow sweep to change it —Add a low slow pulse synchronized to the other audio for extra relaxation —Use a timer to turn everything off after awhile, good for a sleep setting —Can run in the background while you do other things or have your device screen off Uses —Explore relaxation and focus properties of binaural audio —Find frequencies that feel right for you —Use the massive drone stack out to a recording device
Screenshots
Verdict
The clearest difference is price: Local Sidereal Time at Free against SoulTuner's $0.99. Local Sidereal Time also leads on iOS requirement (15.0 vs 18.6). SoulTuner's advantage is in-app purchases (none vs 1) and update cadence (every 5 days vs every 4 months). On ads 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
Local Sidereal Time is free to download; SoulTuner costs $0.99 up front. Local Sidereal Time sells 1 one-off in-app purchase. SoulTuner asks for nothing beyond the download.
Local Sidereal Time ships an update every 4 months, SoulTuner every 5 days. The most recent releases landed on November 2, 2026 and November 1, 2026 respectively.
| Parameter | Local Sidereal Time | SoulTuner |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.7 (1.1K ratings) — better | — |
| Positive reviews | 70.7% of reviews | — |
| Number of ratings | 1.1K — better | — |
| Update frequency | Every 4 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 20 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Scott Spiller | Techné Media |
Bugs and requests
Local Sidereal Time
Reported bugs
4 issues- Alarm doesn't work
- Crashes when loading
- Notification issues
- Pro purchase restoration not working
Requested features
4 requests- Add alarm feature
- Allow setting location manually
- Improve notification handling
- Automatically adjust for daylight saving time
SoulTuner
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Local Sidereal Time
- Pro$4.99
SoulTuner
No in-app purchases
Questions
Is Local Sidereal Time free?
Is SoulTuner free?
Do Local Sidereal Time or SoulTuner have ads?
Which is updated more often, Local Sidereal Time or SoulTuner?
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