Calm
Timer bells
Timed practice supports ambient interval bells. Arbitrary sound-cue insertion into narrated scripts is not listed.
Supporting sources:
Source checked . Availability can change.
Background sound and mixing · 4-app comparison
Add supported sound cues: Calm vs Glo vs Headspace vs Insight Timer
Whether the app lets you add supported sound cues.
Compare by topic
Compare custom self-hypnosis creation and editing controls; existing recordings and clinical hypnotherapy are different offerings. Choosing a self-hypnosis app
Compare guided reflection, journaling and personalization tools for exploring how you see yourself. Self-concept journal prompts
Compare creating affirmation audio, cloning your voice, recording narration and replay controls. Own-voice app guide
Compare creating and revising original guided meditations, including scripts, voices, pauses and generation allowances. Create a custom meditation
Compare creating and editing personal tapping audio, rather than access to a library of recorded sessions. Choosing an EFT tapping app
Compare creating guided rehearsal audio around your goals, context and preferred pacing. What is mental rehearsal?
Compare custom yoga guidance, practice preferences and playback. See the guide for instructor-led class libraries. Choosing a yoga app
| Features1 selected | Calm Calm Premium |  Glo Glo membership |  Headspace Headspace individual |  Insight Timer MemberPlus |
|---|---|---|---|---|
| Add supported sound cues |
Add supported sound cues: details
Glo
No listed support
Glo's reviewed practice, playback, library and device documentation do not list this capability. This is our assessment of the reviewed documentation, not an explicit vendor denial.
Supporting sources:
Source checked . Availability can change.
Headspace
No listed support
Headspace: The individual app combines an expert-recorded practice library with Ebb's reflective conversation and content recommendations. Separate clinical care subscriptions are excluded. No matching listener-controlled audio mixing or cue option was listed in the reviewed playback documentation. This is an assessment of the reviewed published feature scope, not an explicit vendor denial.
Supporting sources:
Source checked . Availability can change.
Insight Timer
Timer bells
Set interval and ending bells in the meditation timer.
Supporting sources:
Source checked . Availability can change.
Sources and plan details
Sources for 1 features across Calm, Glo, Headspace, Insight Timer. Annual prices show the full yearly charge in USD. “Limited” includes conditions. “No listed support” means the feature was not found in the reviewed official documentation.
Calm 1 researched
- Add supported sound cues: Timer bells
-
Timed practice supports ambient interval bells. Arbitrary sound-cue insertion into narrated scripts is not listed.
Checked . Sources: [1]
Calm sources
- Calm tools for advanced meditators · Checked 2026-10-09
Glo 1 researched
Glo sources
- Glo Practice library · Checked 2026-10-09
- Glo music controls · Checked 2026-10-09
- Glo Apple Watch features · Checked 2026-10-09
Headspace 1 researched
- Add supported sound cues: No listed support
-
Headspace: The individual app combines an expert-recorded practice library with Ebb's reflective conversation and content recommendations. Separate clinical care subscriptions are excluded. No matching listener-controlled audio mixing or cue option was listed in the reviewed playback documentation. This is an assessment of the reviewed published feature scope, not an explicit vendor denial.
Headspace sources
- Headspace meditation library and plans · Checked 2026-10-09
- Using Headspace · Checked 2026-10-09
- Headspace AI scope and guardrails · Checked 2026-10-09
Insight Timer 1 researched
- Add supported sound cues: Timer bells
-
Set interval and ending bells in the meditation timer.
Checked . Sources: [1]
Insight Timer sources
- Insight Timer meditation timer · Checked 2026-10-09