Comparison

Phantom Frequency vs Threshold

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

Head to head
About

Phantom Frequency

This paranormal investigation toolkit helps you observe, record, and review environmental activity. It combines vision, sound, and environmental monitoring tools with history and evidence databases for structured documentation of unusual occurrences.

Highlights
  • Camera-based vision tools
  • Audio recording and marking
  • Environmental sensor monitoring
  • Investigation history review
  • Evidence database organization
  • LiDAR-style depth viewing
Features
Read full description

Phantom Frequency is a paranormal investigation toolkit designed to help you observe, record, and review environmental activity during an investigation. The app brings together multiple investigation tools in one place, including vision access, sound access, environmental access, history review, and a local evidence database. Features include: • Vision tools for camera-based observation, LiDAR-style depth viewing, motion tracking, and matrix-style scanning • Sound tools for recording, reviewing, and marking audio moments • Environmental tools for monitoring changes such as motion, pressure, light, location, and related session data • History access for reviewing saved recordings, marked moments, and investigation logs • Database access for organizing known objects, reference photos, false positives, and evidence tags • Optional Remove Ads subscription for one year of ad-free use Phantom Frequency is built for investigators, hobbyists, and anyone interested in documenting unusual activity in a structured way. Use the tools to observe your surroundings, save useful moments, and review your findings later. This app is intended as an entertainment and investigation support tool. Results may vary depending on lighting, device sensors, environment, and user interpretation. Phantom Frequency offers an optional auto-renewable Remove Ads subscription. Subscription: Remove Ads - 1 Year Price: $4.99 per year Length: 1 year The subscription removes banner ads and full-screen ads while active. Privacy Policy: https://qrboxes.com/phantom-frequency-privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Advertising Information: https://policies.google.com/technologies/ads Environmental Access now uses device-based sensor readings and local investigation session logs only.

About

Threshold

Read full description

Threshold: Spirit Box Lab is a focused paranormal investigation app that generates indexed word outputs from live magnetic-field and device-motion activity. Instead of releasing words through a simple repeating timer, Spirit Box Lab uses calibrated sensor activity, sensitivity-based triggering, cooldown behavior, and deterministic indexed selection from a carefully curated 2,048-entry production vocabulary. Configure a Session, Area, sensitivity level, and spoken-output preference before beginning a run. Generated outputs, timestamps, and available technical Trigger Details are saved for later review. SPIRIT BOX LAB • Generate indexed word outputs from live sensor activity • Choose Low, Medium, or High sensitivity • Enable or disable spoken output • View fused magnetic-field and motion activity • Follow trigger progress and cooldown status • Review recent outputs during an active run • Save completed and interrupted runs automatically • Organize runs by Session and Area TRIGGER DETAILS Review the technical context behind saved outputs, including available information such as: • Accumulator activity • Magnetometer contribution • Device-motion contribution • Cooldown state • Sensor-derived signature • Word Index Trigger Details help preserve the conditions surrounding each generated output for later comparison and interpretation. MAGNETIC FIELD MONITOR Monitor live magnetic-field strength and changes from a calibrated baseline. View: • Current magnetic-field magnitude • X, Y, and Z axis readings • Change from baseline • Peak activity • Responsive activity levels Nearby magnets, speakers, electronics, charging equipment, metal objects, and changes in phone orientation can affect readings. VIBRATION BEACON Use the iPhone’s motion sensors to monitor device movement and surface vibration. Choose a sensitivity level and observe: • Current movement level • Stable, movement, and strong-movement states • Movement event count • A responsive full-screen visual beacon For more stable comparisons, place the phone on a fixed surface and avoid unnecessary handling. SESSIONS AND AREAS Create Sessions for separate investigations and Areas for individual rooms, zones, or locations. Saved Spirit Box runs remain connected to the selected Session and Area so activity can be reviewed within its original investigation context. Runs may also be saved as Unassigned when no Area is available. FREE ACCESS Free access includes: • 15 total minutes of complimentary Spirit Box monitoring • Up to 5 minutes per individual run • Calibration time excluded from complimentary usage • Access to previously saved runs after complimentary time is used • Magnetic Field Monitor • Vibration Beacon SPIRIT BOX LAB PRO Upgrade once for lifetime access to: • Unlimited Spirit Box monitoring • Unlimited saved Spirit Box runs • More Sessions and Areas • Trigger Details Spirit Box Lab Pro is a one-time in-app purchase. No subscription is required. PRIVACY-FOCUSED Threshold: Spirit Box Lab does not require an account. Core investigation data is stored locally on your device, and you control what you review or share. Sensor readings and generated outputs should be interpreted within the full context of the investigation. Designed for iPhone.

Screenshots

Phantom Frequency4 screens
Threshold4 screens

Verdict

The call

The clearest difference is iOS requirement: Threshold at 17.6 against Phantom Frequency's 26.4. 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. Phantom Frequency sells 1 in-app purchase, starting at $4.99 per year and Threshold sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 8 level
Phantom Frequency versus Threshold: the parameters behind the verdict, then further details
ParameterPhantom FrequencyThreshold
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 6 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS26.417.6 — better
Further details — not scored
Size13 MB4 MB
Age rating4+9+
DeveloperLee HillBrandon Romero

In-app purchases

1 purchases

Phantom Frequency

Subscriptions1
  • Remove Ads - 1 Year$4.991 Year
1 purchases

Threshold

One-time1
  • Spirit Box Lab Pro$9.99

Questions

Is Phantom Frequency free?
Phantom Frequency is free to download, with in-app purchases available.
Is Threshold free?
Threshold is free to download, with in-app purchases available.
Do Phantom Frequency or Threshold have ads?
Neither Phantom Frequency nor Threshold shows ads.

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