HopX vs Phonebox

HopX costs $0.0504 per vCPU-hour. HopX runs Firecracker microVMs and has no session limit. Phonebox limits a session to 3 hours.

Updated Oct 15, 2026

HopX

Firecracker microVM sandboxes for AI agents.

Isolation: Firecracker microVM
Free tier: $200 credit
Max session: No limit

Visit site HopX profile

Phonebox

Cloud Android phones that AI agents control through their screens.

Isolation: Not listed
Free tier: $2 starter credit, one time, no card
Max session: 3 hours

Visit site Phonebox profile

What is different

4 fields differ. The rest are the same or not listed.

Field

HopX

Phonebox

Free tier: HopX: $200 credit; Phonebox: $2 starter credit, one time, no card
Billing: HopX: Per second; Phonebox: Bundled machine time
Max session: HopX: No limit; Phonebox: 3 hours
SDKs: HopX: Python, JavaScript; Phonebox: TypeScript

Full comparison

18 fields, at each provider's list price

HopXhopx.ai/pricing

Phoneboxphonebox.dev/pricingphonebox.dev

Pricing

vCPU, per hour: HopX: $0.0504; Phonebox: Not listed
RAM, per GiB-hour: HopX: $0.0162; Phonebox: Not listed
Storage: HopX: $0.000108 per GiB-hour; Phonebox: Not listed
Free tier: HopX: $200 credit; Phonebox: $2 starter credit, one time, no card
Paid plan from: HopX: Pay as you go; Phonebox: Pay as you go
Billing: HopX: Per second; Phonebox: Bundled machine time

Limits

Max session: HopX: No limit; Phonebox: 3 hours
Idle stop: HopX: Not listed; Phonebox: After 5 minutes
Largest sandbox: HopX: Not listed; Phonebox: Not listed
Concurrent sandboxes: HopX: Not listed; Phonebox: Up to 5

Platform

Isolation: HopX: Firecracker microVM; Phonebox: Not listed
GPU: HopX: Not listed; Phonebox: Not listed
Snapshots: HopX:; Phonebox: Not listed
Pause and resume: HopX:; Phonebox:

Developer

SDKs: HopX: Python, JavaScript; Phonebox: TypeScript
Integrations: HopX: MCP; Phonebox: MCP

Trust

License: HopX: Not listed; Phonebox: Not listed
BYOC: HopX: Not listed; Phonebox: Not listed

Hourly cost

One sandbox running for one hour

Size

HopX

Phonebox

1 vCPU · 2 GiB: HopX: $0.083; Phonebox: Not listed
2 vCPU · 4 GiB: HopX: $0.166; Phonebox: Not listed
4 vCPU · 8 GiB: HopX: $0.331; Phonebox: Not listed

Compute only, at list rates.

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Which one fits

Based on the fields above

HopX fits when

A session must run longer than 3 hours.
You want the larger free credit: $200 against $2.
You need snapshots.
You need a desktop in the sandbox.

More comparisons

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HopX

Phonebox

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

HopX fits when

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