Comparison

P1 Select vs Sigma Theory

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

Head to head
About

P1 Select

Embark on a roguelike adventure through randomly generated levels, battling monsters and collecting magical rings to unlock special attacks. Choose from nine unique heroes and aim for a high score by gathering pyramids. Experience a challenging and strategic gameplay experience.

Highlights
  • Mini roguelike gameplay
  • 9 randomly generated levels
  • Magical ring power-ups
  • Special attack abilities
  • 9 playable hero characters
  • High score system
Features
Read full description

New mini roguelike "broughlike" game. Explore 9 randomly generated levels, avoid fierce monsters, collect magical rings to use your special attack powers, and gather pyramids to reach a high score. Nine different hero characters to choose from! From the creator of Cinco Paus, 868-HACK, Imbroglio, and Zaga-33.

About

Sigma Theory

Lead a covert agency in a futuristic global cold war. Recruit elite agents, use diplomacy and subterfuge to secure a world-changing scientific discovery for your nation. Engage in turn-based espionage, manage complex relationships, and direct field operations.

Highlights
  • Turn-based espionage gameplay
  • Recruit and manage special agents
  • Dynamic narrative with over 100 NPCs
  • Field operations in global cities
  • Diplomacy and subterfuge mechanics
  • Futuristic global cold war setting
Features
Read full description

Sigma Theory is a Turn-based Strategy game in a futuristic global cold war from the award-winning creators of Out There. Recruit a squad of special agents and run your intel agency to secure the control of the singularity. STORY In the near future, a paradigm-shifting scientific discovery looms over the world, promising radical new technologies. The world’s superpowers realize they could have the power to destroy the global financial system, wipe out entire countries or even gain access to immortality. However, this discovery — called “The Sigma Theory” — can only be harnessed by a handful of scientists. You are placed at the head of your country’s Sigma division. Your objective is to ensure that it is your nation that reaps the benefits of Sigma Theory before anyone else. To achieve this you will have powerful resources at your disposal: a cadre of the world’s most elite covert agents, advanced tactical drones and, of course, your own skills in diplomacy and subterfuge. It’s a cold war out there, one in which mankind must face up to its future. THE ULTIMATE ESPIONAGE SIMULATION Turn-based espionage: Use your special agents to dominate the world. Seduction, blackmail, manipulation, industrial espionage… Every low blow is both permitted and encouraged. Dynamic narrative: Develop and manage your relations with over 100 NPCs: lobbies, armed groups, politicians… Alliance, deception or assassination, you choose. Field operations: Direct the kidnapping of your targets during gripping pursuits through the world’s greatest cities. Discretion or direct confrontation, your agent’s life is in your hands.

Screenshots

P1 Select3 screens
Sigma Theory4 screens

Verdict

The call

The clearest difference is in-app purchases: P1 Select at none against Sigma Theory's 7. P1 Select also leads on rating (4.9 vs 4.5) and review sentiment (85% vs 58%). On ads, monetization model 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

P1 Select costs $3.99 and Sigma Theory $6.99 up front. Sigma Theory sells 7 one-off in-app purchases. P1 Select asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

P1 Select holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: P1 Select has 50 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 85% of P1 Select's written reviews are positive against 58% of Sigma Theory's.

UpkeepUpdate frequency

P1 Select ships an update every 4 days, Sigma Theory fortnightly. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.

Scorecard7 real differences · 3 level
P1 Select versus Sigma Theory: the parameters behind the verdict, then further details
ParameterP1 SelectSigma Theory
Price$3.99 — better$6.99
Rating4.9 (50 ratings) — better4.5 (8 ratings)
Positive reviews85.0% of reviews — better58.3% of reviews
Number of ratings50 — better8
Update frequencyEvery 4 days — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better13.0
Further details — not scored
Size5 MB388 MB
Age rating9+4+
DeveloperMichael BroughPlug In Digital

Customer experience

P1 Select

All ratings50 ratings
Positive96.0%
Neutral2.0%
Negative2.0%
Written reviews20 reviews
Positive85.0%
Neutral5.0%
Negative10.0%

Sigma Theory

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews12 reviews
Positive58.3%
Neutral8.3%
Negative33.3%

In-app purchases

None

P1 Select

No in-app purchases

7 purchases

Sigma Theory

One-time7
  • USA Pack$0.99
  • China$0.99
  • Germany$0.99
Show 4 more
  • South Korea$0.99
  • Nigeria$0.99
  • Brazil$0.99
  • Special Offer: All DLCs$3.99

Questions

Is P1 Select free?
P1 Select costs $3.99, with no in-app purchases.
Is Sigma Theory free?
Sigma Theory costs $6.99, and also offers in-app purchases.
Which has better reviews, P1 Select or Sigma Theory?
P1 Select is rated higher. P1 Select averages 4.9 out of 5 from 50 ratings, while Sigma Theory averages 4.5 from 8 ratings.
Do P1 Select or Sigma Theory have ads?
Neither P1 Select nor Sigma Theory shows ads.
Which is updated more often, P1 Select or Sigma Theory?
P1 Select ships an update every 4 days, and Sigma Theory fortnightly. Most recently, P1 Select was updated on October 18, 2026 and Sigma Theory on October 14, 2026.

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