Calm
Selected durations
Some existing meditations offer adjustable session lengths; this is not arbitrary-length generation of a new script.
Supporting sources:
Source checked . Availability can change.
Writing and creation controls · 3-app comparison
Request a target session length: Calm vs Medito vs Mesmerize
Whether the app lets you request a target session length.
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 |  Medito Free |  Mesmerize Mesmerize Premium |
|---|---|---|---|
| Request a target session length |
Request a target session length: details
Medito
Choose recorded length
The publisher describes choosing sessions from 3–30 minutes. This selects available recordings rather than generating a script to a target duration.
Supporting sources:
Source checked . Availability can change.
Mesmerize
Sleep timer
A stop timer controls listening duration; it does not generate narration to a requested length.
Supporting sources:
Source checked . Availability can change.
Sources and plan details
Sources for 1 features across Calm, Medito, Mesmerize. 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
- Request a target session length: Selected durations
-
Some existing meditations offer adjustable session lengths; this is not arbitrary-length generation of a new script.
Checked . Sources: [1]
Calm sources
- Calm tools for advanced meditators · Checked 2026-10-09
Medito 1 researched
- Request a target session length: Choose recorded length
-
The publisher describes choosing sessions from 3–30 minutes. This selects available recordings rather than generating a script to a target duration.
Checked . Sources: [1]
Medito sources
- Medito publisher listing and 2026 release notes · Checked 2026-10-09
Mesmerize 1 researched
- Request a target session length: Sleep timer
-
A stop timer controls listening duration; it does not generate narration to a requested length.
Checked . Sources: [1]
Mesmerize sources
- Mesmerize product features · Checked 2026-10-09