VAULT
BREAKER

A daily prompt-injection game.
An AI guards a secret — your job is to trick it into talking.

Runs fully on-device · no server · no data leaves your phone

How it works

01

Pick Your Opponent

Download an open-source AI model. It runs entirely on your iPhone — no server, no API, no cost.

02

Daily Challenge

5 levels of increasing difficulty. Fresh secrets every day, same for every player worldwide.

03

Chat & Probe

The AI guards a secret word. Ask anything — it'll drop hints but try not to slip up. You have 5 turns.

04

Crack the Vault

Trick the AI into leaking the secret, or deduce it yourself. Fewer turns = higher score on the leaderboard.

Leaderboard

Top crackers · ranked by score

# PLAYER SCORE VAULTS DEEPEST
#1 Ajeet 8795 71 Lv5
#2 Gpan 1806 18 Lv3
#3 SmartGame 1045 10 Lv2
#4 Ankur 904 8 Lv5
#5 AK 420 4 Lv2
#6 PG 260 2 Lv2
#7 Atharv 254 2 Lv1
#8 Ankit 130 2 Lv1
#9 Sanjeev Kainth 74 1 Lv1
#10 am 61 1 Lv1

Performance Leaderboard

Aggregated from all players · updated live

# MODEL CRACK % TOK/S LATENCY SESSIONS LOVED
#1 Qwen 2.5 · 1.5B 72% 20.3 1.6s 119 ❤️ 1
#2 Smollm2 1.7B 8k Mix7 Ep2 v2 1.7B 67% 14.2 4.4s 3
#3 Qwen 2.5 1.8B 65% 20.2 2.1s 34 ❤️ 2
#4 SmolLM2 · 1.7B 64% 17.9 3.6s 14
#5 Phi 3.5 Mini Instruct mini 0% 10.4 16.7s 1

Get the App

iOS only · Physical device required for on-device inference

Download on the App Store